Ephesians 6:4
Fathers, do not provoke your children to anger, but bring them up in the discipline and instruction of the Lord.
Matthew 12:35
The good man out of the good treasure of his heart brings forth good things, and an evil man out of the evil treasure brings forth evil things.
Luke 6:45
The good man out of the good treasure of his heart brings forth good, and an evil man out of the evil treasure of his heart brings forth evil. For out of the abundance of the heart his mouth speaks.
Ephesians 4:29
Let no unwholesome talk come out of your mouths, but only such as is good for building others up according to the need of the moment, that it may impart grace to those who hear.
Colossians 4:6
Let your speech always be full of grace, seasoned with salt, so that you may know how you ought to answer everyone.
1 Peter 3:15
but in your hearts reverence Christ as Lord. Always be prepared to make a defense to everyone who asks you to give an account for the hope that is in you, yet do it with gentleness and respect;