His vengeance

Luke 18:6-8
Then the Lord said, “Hear what the unjust judge said. And shall God not avenge His own elect who cry out day and night to Him, though He bears long with them? I tell you that He will avenge them speedily.  Nevertheless, when the Son of Man comes, will He really find faith on the earth?”

God will avenge.  What does that mean?  To avenge is to inflict harm in retaliation for harm done to oneself.  It is an eye for an eye.  If God is love—self-sacrificing love—as the Apostle John tells us,  how should we understand His vengeance?

The word vengeance has a violent connotation.  God is not violent, yet He is fearsome.  In the book of the Revelation (also written by the Apostle John), the wicked cry out to be spared from the wrath of the Lamb!