24 Abraham said, “I will swear.”
Genesis 21:24 Cross References - WEB
Genesis 14:13
13 One who had escaped came and told Abram, the Hebrew. At that time, he lived by the oaks of Mamre, the Amorite, brother of Eshcol and brother of Aner. They were allies of Abram.
Romans 12:18
18 If it is possible, as much as it is up to you, be at peace with all men.
Hebrews 6:16
16 For men indeed swear by a greater one, and in every dispute of theirs the oath is final for confirmation.