Amos 7:7-8 King James Version (KJV)
7 Thus he shewed me: and, behold, the Lord stood upon a wall made by a plumbline, with a plumbline in his hand.
8 And the Lord said unto me, Amos, what seest thou? And I said, A plumbline. Then said the Lord, Behold, I will set a plumbline in the midst of my people Israel: I will not again pass by them any more: