"To be a Christian means to forgive the inexcusable because God has forgiven the inexcusable in you." - CS Lewis
The beginning of strife is like letting out water, so quit before the quarrel breaks out. - Proverbs 17:14
How Christians should respond to anger:
A hot-tempered man stirs up strife, but he who is slow to anger quiets contention. - Proverbs 15:18