TSK · Genesis 21:24

Then came one that had escaped, and told Abram the Ebrew, which dwelt in the plaine of Mamre ye Amorite, brother of Eshcol, & brother of Aner, which were confederat with Abram.

For men verely sweare by him that is greater then themselues, and an othe for confirmation is among them an ende of all strife.