Genesis 21:23,31
Now therefore swear to me here by God that you will not deal falsely with me, nor with my son, nor with my son's son: but according to the kindness that I have done to you, you shall do to me, and to the land wherein you have sojourned.
Torrey's Topical Textbook—AKJV

Genesis 26:31
And they rose up betimes in the morning, and swore one to another: and Isaac sent them away, and they departed from him in peace.
Torrey's Topical Textbook—AKJV