Luke 18:3

And there was a widow in that city; and she kept coming to him, saying, Avenge me of my adversary!

Luke 18:7-8

And will not God avenge his chosen, who cry to him day and night, though he be slow to punish in their behalf?

Romans 13:3-4

For rulers are not a terror to good works, but to the evil. Wouldst thou then not be afraid of the government? Do that which is good, and thou wilt have praise from it;

Treasury of Scripture Knowledge

Summary

And there was a widow in that city; and she came unto him, saying, Avenge me of mine adversary.

Bible References

Avenge

Luke 18:7
And will not God avenge his chosen, who cry to him day and night, though he be slow to punish in their behalf?
Romans 13:3
For rulers are not a terror to good works, but to the evil. Wouldst thou then not be afraid of the government? Do that which is good, and thou wilt have praise from it;