The Law · Chapter 20 of 50
Genesis 20
Abraham journeys to Gerar and again calls Sarah his sister, so King Abimelech takes her. God warns Abimelech in a dream that she is married and that he is a dead man. Abimelech, who had not touched her, protests his innocence, and God tells him to restore Sarah and ask Abraham, a prophet, to pray for him. Abraham prays, and God heals the household.
What happens in Genesis 20
Abraham moves south and settles in Gerar, where he says of Sarah, She is my sister. King Abimelech sends and takes her into his house. But God comes to Abimelech in a night dream, warning that he is as good as dead because the woman is married. Abimelech, who had not come near her, pleads his innocence and integrity. God acknowledges it, saying He Himself kept Abimelech from sinning, and commands him to restore Sarah and let Abraham, a prophet, pray for him or die.
Alarmed, Abimelech rises early, rebukes Abraham, and asks why he lied. Abraham explains his fear that there was no fear of God in the place, and that Sarah is indeed his half sister. Abimelech restores Sarah with gifts and offers land. Abraham prays, and God heals Abimelech's household, whose wombs He had closed.
Genesis 20 in context
This is the second time Abraham passes Sarah off as his sister, the first being in Egypt with Pharaoh in Genesis 12. It falls between the promise of Isaac and his birth in the next chapter, when protecting the promised line matters most.
Gerar lies in Philistine territory, and Abimelech is likely a royal title. The account shows even the patriarch's fear and repeated failure against the backdrop of God's faithful guarding.
Main themes of Genesis 20
Genesis 20 (KJV)
1And Abraham journeyed from thence toward the south country, and dwelled between Kadesh and Shur, and sojourned in Gerar. 2And Abraham said of Sarah his wife, She is my sister: and Abimelech king of Gerar sent, and took Sarah. 3But God came to Abimelech in a dream by night, and said to him, Behold, thou art but a dead man, for the woman which thou hast taken; for she is a man’s wife. 4But Abimelech had not come near her: and he said, LORD, wilt thou slay also a righteous nation? 5Said he not unto me, She is my sister? and she, even she herself said, He is my brother: in the integrity of my heart and innocency of my hands have I done this. 6And God said unto him in a dream, Yea, I know that thou didst this in the integrity of thy heart; for I also withheld thee from sinning against me: therefore suffered I thee not to touch her. 7Now therefore restore the man his wife; for he is a prophet, and he shall pray for thee, and thou shalt live: and if thou restore her not, know thou that thou shalt surely die, thou, and all that are thine. 8Therefore Abimelech rose early in the morning, and called all his servants, and told all these things in their ears: and the men were sore afraid. 9Then Abimelech called Abraham, and said unto him, What hast thou done unto us? and what have I offended thee, that thou hast brought on me and on my kingdom a great sin? thou hast done deeds unto me that ought not to be done. 10And Abimelech said unto Abraham, What sawest thou, that thou hast done this thing? 11And Abraham said, Because I thought, Surely the fear of God is not in this place; and they will slay me for my wife’s sake. 12And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife. 13And it came to pass, when God caused me to wander from my father’s house, that I said unto her, This is thy kindness which thou shalt shew unto me; at every place whither we shall come, say of me, He is my brother. 14And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham, and restored him Sarah his wife. 15And Abimelech said, Behold, my land is before thee: dwell where it pleaseth thee. 16And unto Sarah he said, Behold, I have given thy brother a thousand pieces of silver: behold, he is to thee a covering of the eyes, unto all that are with thee, and with all other: thus she was reproved. 17So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children. 18For the LORD had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham’s wife.
Verses to carry from Genesis 20
“And God said unto him in a dream, Yea, I know that thou didst this in the integrity of thy heart; for I also withheld thee from sinning against me: therefore suffered I thee not to touch her.”Genesis 20:6
“Now therefore restore the man his wife; for he is a prophet, and he shall pray for thee, and thou shalt live: and if thou restore her not, know thou that thou shalt surely die, thou, and all that are thine.”Genesis 20:7
“So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children.”Genesis 20:17
Thematic connection
How Genesis 20 points to Jesus
Abraham is here called a prophet, and his defining act is to pray for the very man he wronged, so that God heals the household (Genesis 20:7, 17). That picture of one who stands between God and the guilty, interceding so that others may live, runs through Scripture and finds its fullness in Jesus, the great prophet who ever liveth to make intercession for us. The chapter also quietly magnifies grace: God guards Sarah and the promised seed despite Abraham's fear and deceit, keeping the line through which Christ would come intact.
Where the patriarch's faith wavers, God's faithfulness holds, a theme Paul celebrates: if we are faithless, He remains faithful. The Savior's coming depended not on human perfection but on God's unbreakable purpose.
Questions about Genesis 20
Was Abraham's claim that Sarah was his sister a lie?
Abraham explains she truly is his half sister, sharing his father but not his mother (Genesis 20:12). Yet the statement was meant to deceive, hiding that she was also his wife to protect himself. It was a half truth used to mislead. The account does not excuse him; it shows a man of faith still leaning on his own schemes rather than trusting God's protection.
Why did God speak to a pagan king in a dream?
God's care and authority reach beyond the covenant family. He warns Abimelech to keep him from sin and to protect Sarah, showing that He governs all people and can restrain evil even in those who do not know Him. Abimelech's respectful response reveals a genuine reverence, reminding us God is at work in the wider world, not only among the chosen.
Reflection
When have you leaned on a clever half truth to protect yourself instead of trusting God? Abraham's fear did not disqualify him, but it did entangle others. God's faithfulness covered his failure. Consider where fear still drives you to manage outcomes God has promised to secure Himself.
A prayer from Genesis 20
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