Amos 7:6

4Thus the Lord GOD showed me: behold, the Lord GOD called for judgment by fire; and it dried up the great deep, and would have devoured the land.

5Then I said, “Lord GOD, stop, I beg you! How could Jacob stand? For he is small.”

6The LORD relented concerning this. “This also shall not be,” says the Lord GOD.

7Thus he showed me: behold, the Lord stood beside a wall made by a plumb line, with a plumb line in his hand.

8The LORD said to me, “Amos, what do you see?” I said, “A plumb line.” Then the Lord said, “Behold, I will set a plumb line in the middle of my people Israel. I will not again pass by them any more.