Genesis 26:28

Now it happened at that time, that Abimelech and Phicol, the commander of his army, spoke to Abraham, saying, “God is with you in all that you do;

“So now come, let us cut a covenant, you and I, and let it be a witness between you and me.”

Now his master saw that Yahweh was with him and how Yahweh caused all that he did to succeed in his hand.

And Nahash the Ammonite came up and besieged Jabesh-gilead; and all the men of Jabesh said to Nahash, “Cut a covenant with us, and we will serve you.”