Matthew 10:13
If the house deserves it, the peace you wish it will come over it, but if it does not deserve it, your blessing will come back upon yourselves.
1 Corinthians 15:18
Yes, and those who have fallen asleep in trust in Christ have perished.
Treasury of Scripture Knowledge
Summary
For thou shalt heap coals of fire upon his head, and the LORD shall reward thee.
General references
Bible References
General references
Matthew 5:44
But I tell you, love your enemies and pray for your persecutors,