'Proof' in the Bible

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

He replied, "You must take these seven ewe lambs from my hand as legal proof that I dug this well."

So now, come, let's make a formal agreement, you and I, and it will be proof that we have made peace."

By this ye shall be put to the proof: as Pharaoh lives, ye shall not go forth hence, unless your youngest brother come hither!

Send one of you, that he may fetch your brother, but ye shall be imprisoned, and your words shall be put to the proof, whether the truth is in you; and if not, as Pharaoh lives, ye are spies.