Matthew 5:22
I, however, say to you that any one who cherishes anger against his brother shall be liable to answer for it to the Court; and whoever pours contempt upon his brother shall be liable to answer for it to the High Council, while whoever calls down curses upon him shall be liable to answer for it in the fiery Pit.
Ephesians 4:31
Let all bitterness, passion, anger, brawling, and abusive language be banished from among you, as well as all malice.
Ephesians 6:4
And fathers, do not irritate your children, but bring them up with Christian discipline and instruction.
James 1:19-20
Mark this, my dear Brothers--Let every one be quick to listen, slow to speak, and slow to get angry;