'Spare' in the Bible

The Lord said to me, “Amos, what do you see?” And I said, “A plumb line.” Then the Lord said,“Behold, I am setting a plumb line [as a standard]Among My people Israel [showing the defectiveness of the nation, requiring judgment].I shall not spare them any longer. [The door of mercy is shut.]

And He said, “Amos, what do you see?” And I said, “A basket of summer fruit.” Then the Lord said to me, “The end has come for My people Israel. I will spare them no longer [for the nation is ripe for judgment].