Matthew 10:13
And if the people seem trustworthy, express your wish for blessings to rest upon them. But if they prove to be untrustworthy, may those blessings remain on you [instead].
Luke 10:6
And if a son of peace is there [i.e., a peace-loving person], your [request for] peace will rest upon him. But if he is not [a peace-loving person], your [blessing of] peace will return to [rest on] you.
Matthew 5:44
But I tell you, love your enemies and pray for those who persecute you,
Matthew 9:14-15
Some of John's disciples came to Jesus saying, "Why is it that we and the Pharisees fast frequently [i.e., going without food and/or drink for religious reasons], but your disciples do not fast [at all]?"
Romans 12:14-15
Ask God's blessing on people who persecute you, instead of cursing them.