Genesis 17:13
He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
More from Genesis 17
Verse 1
And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect.
Verse 2
And I will make my covenant between me and thee, and will multiply thee exceedingly.
Verse 3
And Abram fell on his face: and God talked with him, saying,
Verse 4
As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.
Verse 5
Neither shall thy name any more be called Abram, but thy name shall be Abraham; for a father of many nations have I made thee.