Cross reference
Genesis 21:24
24 And Abraham said, I will give you my oath.
Genesis 14:13
13 And one who had got away from the fight came and gave word of it to Abram the Hebrew, who was living by the holy tree of Mamre, the Amorite, the brother of Eshcol and Aner, who were friends of Abram.
Romans 12:18
18 As far as it is possible for you be at peace with all men.
Hebrews 6:16
16 For men at all times make their oaths by what is greater; and any argument is ended by the decision of the oath.