Genesis 20
Abraham and Abimelech
And Abraham journeyed from thence toward the south country, and dwelled between Kadesh and Shur, and sojourned in Gerar. (Gen. 20:1 KJV)
And Abraham said of Sarah his wife, She is my sister: and Abimelech king of Gerar sent, and took Sarah.(Gen. 20:2 KJV)
But 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. (Gen. 20:3 KJV)
But Abimelech had not come near her: and he said, Lord, wilt thou slay also a righteous nation?(Gen. 20:4 KJV)
Said 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.(Gen. 20:5 KJV)
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. (Gen. 20:6 KJV)
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. (Gen. 20:7 KJV)
Therefore 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. (Gen. 20:8 KJV)
Then 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.(Gen. 20:9 KJV)
And Abimelech said unto Abraham, What sawest thou, that thou hast done this thing?(Gen. 20:10 KJV)
And 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.(Gen. 20:11 KJV)
And 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.(Gen. 20:12 KJV)
And 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.(Gen. 20:13 KJV)
And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham, and restored him Sarah his wife.(Gen. 20:14 KJV)
And Abimelech said, Behold, my land is before thee: dwell where it pleaseth thee.(Gen. 20:15 KJV)
And 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. (Gen. 20:16 KJV)
So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children. (Gen. 20:17 KJV)
For the LORD had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham's wife.(Gen. 20:18 KJV)
20:1
Gen 20 serves as a bridge between God's promise that Sarah will have a son (Gen 18) and the birth of Isaac (Gen 21)
Before Abimelech has any relations with her, God appears to him in a dream and warns him. This emphasizes that God protects Sarah and preserves the promised family line.