At about that time Abimelech said to Abraham, “God is with you in everything you do. Swear to me now by God that you will not act dishonestly with me or with my descendants and that, as I have been loyal to you, you will be loyal to me and to the people of the land where you have been living.”
And Abraham said, “I swear it.”
And Abraham took sheep and oxen and gave them to Abimelech, and the two of them made a pact. That is why that place was named Beer-sheba, The Well of the Oath, because the two of them swore an oath there.