Matthew 5:9, 16, 23-24, 44-45

Blessed are the peacemakers, For they shall be called sons of God.

Let your light so shine before men, that they may see your good works and glorify your Father in heaven.

Therefore if you bring your gift to the altar, and there remember that your brother has something against you, leave your gift there before the altar, and go your way. First be reconciled to your brother, and then come and offer your gift.

But I say to you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who spitefully use you and persecute you, that you may be sons of your Father in heaven; for He makes His sun rise on the evil and on the good, and sends rain on the just and on the unjust.