Genesis 15:6

15:6 Abram believed the Lord, and the Lord considered his response of faith as proof of genuine loyalty.

Genesis 21:30

21:30 He replied, “You must take these seven ewe lambs from my hand as legal proof that I dug this well.”

Genesis 31:44

31:44 So now, come, let’s make a formal agreement, you and I, and it will be proof that we have made peace.”