Amos 7:7-9 NIV
This is what he showed me: The Lord was standing by a wall that had been built true to plumb, with a plumb line in his hand. And the LORD asked me, “What do you see, Amos?”
“A plumb line,” I replied.
Then the Lord said, “Look, I am setting a plumb line among my people Israel; I will spare them no longer.
“The high places of Isaac will be destroyed
and the sanctuaries of Israel will be ruined;
with my sword I will rise against the house of Jeroboam.”
NIV: New International Version