Genesis Chapter Study

God’s Promise, Sarah’s Laughter, and Abraham’s Intercession

Genesis 18 (KJV)

Genesis 18 records the Lord appearing to Abraham by the plains of Mamre, confirming that Sarah will bear Isaac, and revealing His concern over the wickedness of Sodom and Gomorrah. The chapter shows God’s faithfulness to His promise, Sarah’s struggle to believe the impossible, and Abraham’s bold intercession before the Judge of all the earth.

What You'll Learn

• Why the Lord appeared to Abraham by the plains of Mamre
• How Abraham showed humility and hospitality to the three visitors
• Why Sarah laughed when she heard the promise of Isaac
• What Genesis 18:14 teaches about God’s power
• Why God revealed His plans concerning Sodom to Abraham
• How Abraham interceded before the Lord
• What the chapter teaches about God’s justice and mercy
• Why prayer matters when standing in the gap for others
• How faith responds when God’s promise seems impossible

Genesis 18 teaches that nothing is too hard for the Lord, and that the God who keeps His promises is also perfectly just, merciful, and willing to hear the prayers of His people.

Bible Translation Note: All Scripture on this page is quoted from the King James Version (KJV) and presented in full without alteration.

Genesis 18:1 And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day;

Genesis 18:2 And he lift up his eyes and looked, and, lo, three men stood by him: and when he saw them, he ran to meet them from the tent door, and bowed himself toward the ground,

Genesis 18:3 And said, My Lord, if now I have found favour in thy sight, pass not away, I pray thee, from thy servant:

Genesis 18:4 Let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree:

Genesis 18:5 And I will fetch a morsel of bread, and comfort ye your hearts; after that ye shall pass on: for therefore are ye come to your servant. And they said, So do, as thou hast said.

Genesis 18:6 And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.

Genesis 18:7 And Abraham ran unto the herd, and fetcht a calf tender and good, and gave it unto a young man; and he hasted to dress it.

Genesis 18:8 And he took butter, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat.

Genesis 18:9 And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent.

Genesis 18:10 And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.

Genesis 18:11 Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.

Genesis 18:12 Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?

Genesis 18:13 And the LORD said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, which am old?

Genesis 18:14 Is any thing too hard for the LORD? At the time appointed I will return unto thee, according to the time of life, and Sarah shall have a son.

Genesis 18:15 Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.

Genesis 18:16 And the men rose up from thence, and looked toward Sodom: and Abraham went with them to bring them on the way.

Genesis 18:17 And the LORD said, Shall I hide from Abraham that thing which I do;

Genesis 18:18 Seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him?

Genesis 18:19 For I know him, that he will command his children and his household after him, and they shall keep the way of the LORD, to do justice and judgment; that the LORD may bring upon Abraham that which he hath spoken of him.

Genesis 18:20 And the LORD said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;

Genesis 18:21 I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.

Genesis 18:22 And the men turned their faces from thence, and went toward Sodom: but Abraham stood yet before the LORD.

Genesis 18:23 And Abraham drew near, and said, Wilt thou also destroy the righteous with the wicked?

Genesis 18:24 Peradventure there be fifty righteous within the city: wilt thou also destroy and not spare the place for the fifty righteous that are therein?

Genesis 18:25 That be far from thee to do after this manner, to slay the righteous with the wicked: and that the righteous should be as the wicked, that be far from thee: Shall not the Judge of all the earth do right?

Genesis 18:26 And the LORD said, If I find in Sodom fifty righteous within the city, then I will spare all the place for their sakes.

Genesis 18:27 And Abraham answered and said, Behold now, I have taken upon me to speak unto the Lord, which am but dust and ashes:

Genesis 18:28 Peradventure there shall lack five of the fifty righteous: wilt thou destroy all the city for lack of five? And he said, If I find there forty and five, I will not destroy it.

Genesis 18:29 And he spake unto him yet again, and said, Peradventure there shall be forty found there. And he said, I will not do it for forty's sake.

Genesis 18:30 And he said unto him, Oh let not the Lord be angry, and I will speak: Peradventure there shall thirty be found there. And he said, I will not do it, if I find thirty there.

Genesis 18:31 And he said, Behold now, I have taken upon me to speak unto the Lord: Peradventure there shall be twenty found there. And he said, I will not destroy it for twenty's sake.

Genesis 18:32 And he said, Oh let not the Lord be angry, and I will speak yet but this once: Peradventure ten shall be found there. And he said, I will not destroy it for ten's sake.

Genesis 18:33 And the LORD went his way, as soon as he had left communing with Abraham: and Abraham returned unto his place.

Genesis 18:1

And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day;

Study: The chapter begins with the Lord appearing to Abraham near the plains of Mamre. Abraham is sitting at the tent door in the heat of the day, likely resting. God comes to Abraham in an ordinary setting, showing that divine encounters are not limited to dramatic locations or formal places of worship.

Genesis 18:2

And he lift up his eyes and looked, and, lo, three men stood by him: and when he saw them, he ran to meet them from the tent door, and bowed himself toward the ground,

Study: Abraham sees three men standing near him and responds quickly with humility and honor. He runs to meet them and bows himself toward the ground. His response shows eagerness to serve and reverence toward those who have come to him.

Genesis 18:3

And said, My Lord, if now I have found favour in thy sight, pass not away, I pray thee, from thy servant:

Study: Abraham asks the visitors not to pass by. His words are humble and servant-hearted. He sees their arrival as an opportunity to serve rather than an interruption to avoid.

Genesis 18:4

Let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree:

Study: Abraham offers water, rest, and relief from the journey. Washing the feet was a practical act of hospitality in a dusty land. This verse highlights the beauty of serving people in simple and practical ways.

Genesis 18:5

And I will fetch a morsel of bread, and comfort ye your hearts; after that ye shall pass on: for therefore are ye come to your servant. And they said, So do, as thou hast said.

Study: Abraham offers food and refreshment. Though he speaks modestly of a morsel of bread, the following verses show that he prepares a generous meal. True hospitality often gives more than it announces.

Genesis 18:6

And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.

Study: Abraham acts with urgency and involves Sarah in preparing the meal. The use of fine meal shows honor and generosity. Abraham’s household becomes a place of service and welcome.

Genesis 18:7

And Abraham ran unto the herd, and fetcht a calf tender and good, and gave it unto a young man; and he hasted to dress it.

Study: Abraham personally selects a tender and good calf. He does not offer what is leftover or convenient. His hospitality reflects honor, excellence, and a generous heart.

Genesis 18:8

And he took butter, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat.

Study: Abraham serves the meal and stands by while the visitors eat. The posture of standing by them shows continued readiness to serve. Before the chapter reveals promise and judgment, it first shows Abraham walking in humility and hospitality.

Genesis 18:9

And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent.

Study: The visitors ask specifically about Sarah. This reveals that the visit is not only for Abraham but also concerns Sarah directly. God’s promise includes her, and she is not forgotten in the covenant story.

Genesis 18:10

And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.

Study: The promise becomes specific: Sarah will have a son. God’s word moves from distant promise to appointed fulfillment. Sarah hears the promise herself, making her personally responsible to believe what God has spoken.

Genesis 18:11

Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.

Study: Scripture makes the impossibility clear. Abraham and Sarah are old, and Sarah is beyond normal childbearing years. The human situation is hopeless, which will make the fulfillment unmistakably an act of God.

Genesis 18:12

Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?

Study: Sarah laughs within herself because the promise seems impossible. Her laughter reveals the struggle between God’s word and human limitation. She looks at age, weakness, and circumstance, but God is calling her to look at His power.

Genesis 18:13

And the LORD said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, which am old?

Study: The Lord reveals that Sarah’s private laughter is known to Him. Nothing hidden in the heart is hidden from God. Yet His response is not rejection; He confronts her doubt so faith can grow.

Genesis 18:14

Is any thing too hard for the LORD? At the time appointed I will return unto thee, according to the time of life, and Sarah shall have a son.

Study: This is the central truth of the chapter. God’s promise is not limited by human impossibility. The Lord also speaks of an appointed time, reminding us that God’s power and timing work together perfectly.

Genesis 18:15

Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.

Study: Sarah denies laughing because she is afraid. The Lord gently but firmly tells the truth. God does not ignore unbelief, but He also does not abandon Sarah. His promise remains sure even while He corrects her fear and doubt.

Genesis 18:16

And the men rose up from thence, and looked toward Sodom: and Abraham went with them to bring them on the way.

Study: The scene shifts from promise to judgment. The men look toward Sodom, and Abraham walks with them. The chapter now moves from Sarah’s coming son to the condition of a wicked city.

Genesis 18:17

And the LORD said, Shall I hide from Abraham that thing which I do;

Study: The Lord chooses to reveal His plan to Abraham. This shows the depth of covenant relationship. Abraham is not merely a bystander; he is being invited into a deeper understanding of God’s justice and purposes.

Genesis 18:18

Seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him?

Study: God connects His decision to reveal His plans with Abraham’s future calling. Abraham will become a great nation, and all nations will be blessed in him. Because his calling is significant, God teaches him about righteousness, justice, and mercy.

Genesis 18:19

For I know him, that he will command his children and his household after him, and they shall keep the way of the LORD, to do justice and judgment; that the LORD may bring upon Abraham that which he hath spoken of him.

Study: Abraham is called to lead his household in the way of the Lord. Faith is not only personal; it is meant to be taught, modeled, and passed down. God’s people are called to do justice and judgment as they walk in His ways.

Genesis 18:20

And the LORD said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;

Study: The sin of Sodom and Gomorrah is described as very grievous. The cry against them has reached the Lord. God sees wickedness clearly, hears the cry of injustice, and does not treat sin lightly.

Genesis 18:21

I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.

Study: God’s judgment is never rash or careless. This verse shows His perfect justice and careful examination. The Lord knows all things, yet the language emphasizes that His judgments are righteous, measured, and true.

Genesis 18:22

And the men turned their faces from thence, and went toward Sodom: but Abraham stood yet before the LORD.

Study: The men go toward Sodom, but Abraham remains before the Lord. This becomes the setting for intercession. Abraham stands in the presence of God and prepares to plead for mercy.

Genesis 18:23

And Abraham drew near, and said, Wilt thou also destroy the righteous with the wicked?

Study: Abraham draws near and begins to intercede. His concern is whether the righteous will be destroyed with the wicked. He approaches God with reverence, but also with boldness rooted in God’s character.

Genesis 18:24

Peradventure there be fifty righteous within the city: wilt thou also destroy and not spare the place for the fifty righteous that are therein?

Study: Abraham asks whether God would spare the city for the sake of fifty righteous people. His prayer shows concern not only for Lot but for the city itself. Intercession looks beyond personal interest and pleads for mercy for others.

Genesis 18:25

That be far from thee to do after this manner, to slay the righteous with the wicked: and that the righteous should be as the wicked, that be far from thee: Shall not the Judge of all the earth do right?

Study: Abraham appeals to God’s righteousness. He knows the Judge of all the earth will do right. This is not an accusation against God but a statement of trust in God’s perfect justice.

Genesis 18:26

And the LORD said, If I find in Sodom fifty righteous within the city, then I will spare all the place for their sakes.

Study: The Lord answers with mercy. If fifty righteous are found, He will spare the place. God’s willingness to respond shows that He hears intercession and delights in mercy without compromising justice.

Genesis 18:27

And Abraham answered and said, Behold now, I have taken upon me to speak unto the Lord, which am but dust and ashes:

Study: Abraham recognizes his humility before God. He is bold, but not arrogant. True prayer approaches the Lord with confidence in His character and humility about our own position.

Genesis 18:28

Peradventure there shall lack five of the fifty righteous: wilt thou destroy all the city for lack of five? And he said, If I find there forty and five, I will not destroy it.

Study: Abraham continues to plead, lowering the number from fifty to forty-five. The Lord again responds with patience and mercy. This exchange reveals that God is not annoyed by humble, sincere intercession.

Genesis 18:29

And he spake unto him yet again, and said, Peradventure there shall be forty found there. And he said, I will not do it for forty's sake.

Study: Abraham asks again, and the Lord answers again. The repetition shows the persistence of intercession and the patience of God. Abraham is learning that God’s mercy is greater than he may have first imagined.

Genesis 18:30

And he said unto him, Oh let not the Lord be angry, and I will speak: Peradventure there shall thirty be found there. And he said, I will not do it, if I find thirty there.

Study: Abraham continues with reverence, asking the Lord not to be angry. He lowers the number to thirty, and God again shows willingness to spare. This prayer is bold, but it remains deeply respectful.

Genesis 18:31

And he said, Behold now, I have taken upon me to speak unto the Lord: Peradventure there shall be twenty found there. And he said, I will not destroy it for twenty's sake.

Study: Abraham asks for mercy if twenty righteous people can be found. The Lord’s answer remains merciful. This verse reminds us that God values righteousness and is willing to show mercy for the sake of the righteous.

Genesis 18:32

And he said, Oh let not the Lord be angry, and I will speak yet but this once: Peradventure ten shall be found there. And he said, I will not destroy it for ten's sake.

Study: Abraham makes his final request, asking whether the city would be spared for ten righteous people. The Lord says He will not destroy it for ten’s sake. This reveals the depth of God’s mercy and the seriousness of Sodom’s spiritual condition.

Genesis 18:33

And the LORD went his way, as soon as he had left communing with Abraham: and Abraham returned unto his place.

Study: The conversation ends, and Abraham returns to his place. He has stood before the Lord, pleaded for mercy, and entrusted the outcome to God. Intercession does not control God; it brings our concerns before Him and rests in His perfect justice.

Genesis 18 records the Lord appearing to Abraham by the plains of Mamre. Abraham welcomes three visitors with humble hospitality, and the Lord confirms that Sarah will bear a son at the appointed time. Sarah laughs within herself because the promise seems impossible, but the Lord asks, “Is any thing too hard for the LORD?” The chapter then turns toward Sodom and Gomorrah. God reveals His concern over their grievous sin, and Abraham intercedes, asking whether the city would be spared for the sake of the righteous. Genesis 18 reveals God’s faithfulness, His power over impossibility, His justice, His mercy, and His willingness to hear prayer.

Heavenly Father, thank You that nothing is too hard for You. Help me trust Your promises even when my circumstances seem impossible. Give me a heart that welcomes opportunities to serve others with humility and generosity. Teach me to pray with faith, reverence, and compassion for those around me. Remind me that You are the Judge of all the earth, and You always do what is right. In Jesus' name, Amen.

• Read Genesis 18 each day this week
• Memorize Genesis 18:14
• Write down one situation where you need to trust that nothing is too hard for the Lord
• Find one practical way to show hospitality or generosity to someone
• Pray for someone who is far from God or in need of mercy
• Reflect on what it means that God is both just and merciful
• Ask God to help you lead your household in the way of the Lord

Genesis 18 shows the Lord visiting Abraham and confirming that Sarah will bear Isaac at the appointed time. Sarah laughs because the promise seems impossible, but God declares that nothing is too hard for Him. The chapter then turns to Sodom and Gomorrah, where God reveals the seriousness of their sin and Abraham boldly intercedes for the righteous. Through Abraham’s hospitality, Sarah’s doubt, and Abraham’s prayer, Genesis 18 teaches that God is faithful to His promises, powerful over impossibility, patient with His people, and perfectly just in all His ways.

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