Colossians 3:21

3:21 Fathers, do not provoke your children, so they will not become disheartened.

Romans 3:14

3:14 “Their mouths are full of cursing and bitterness.”

Ephesians 4:31

4:31 You must put away every kind of bitterness, anger, wrath, quarreling, and evil, slanderous talk.

James 3:14

3:14 But if you have bitter jealousy and selfishness in your hearts, do not boast and tell lies against the truth.