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7Thus he showed me: and, behold, the Lord stood beside a wall made by a plumb-line, with a plumb-line in his hand. 8And Jehovah said unto me, Amos, what seest thou? And I said, A plumb-line. Then said the Lord, Behold, I will set a plumb-line in the midst of my people Israel; I will not again pass by them any more; 9and the high places of Isaac shall be desolate, and the sanctuaries of Israel shall be laid waste; and I will rise against the house of Jeroboam with the sword.
Amos 7:7-9 (ASV)