Jeremiah 23:20
The anger of the LORD shall not return, until he have executed, and till he have performed the thoughts of his heart: in the latter days ye shall consider it perfectly. The anger of the LORD shall not return, until he have executed, and till he have performed the thoughts of his heart: in the latter days ye shall consider it perfectly.
The verse is set against false prophets who promise peace and deny coming evil, warning that they will face the Lord's judgment. His anger will not turn back until He has executed and performed the purposes of His heart. In the latter days those purposes will be fully understood, when people recognize afterward the truth of the warning and the judgment He brings.