Mark 9:43-48
And, if your hand causes you to stumble, cut it off; it is good for you to enter into life maimed, rather than having the two hands to go into Hell--into the unquenchable fire!
Luke 1:69
and raised up a horn of salvation for us in the house of David His servant;
Luke 18:3-5
And there was a widow in that city; and she kept coming to him, saying, 'Avenge me of my adversary.'
Romans 13:4
for he is God's minister to you for good. But, if you do that which is evil, be afraid; for he bears not the sword in vain; for he is God's minister, an avenger for wrath to him that does evil.