Job 31:30
I have not let my mouth sin by asking for their lives with a curse.
Romans 12:14
Bless those who persecute you. Bless and do not curse.
Exodus 23:4-5
If you see your enemy's cow or donkey running loose, take it back to him.
Ecclesiastes 5:2
Do not be in a hurry to talk. Do not be eager to speak in the presence of God. Since God is in heaven and you are on earth, limit the number of your words.
Ecclesiastes 5:6
Do not let your speech cause you to sin. Do not say to the messenger of God that it was a mistake. Why should God be angry because of what you say and destroy the work of your hands?
Matthew 5:22
Now I tell you that everyone who is angry with his brother [without cause] shall be guilty before the court. Whoever speaks to his brother with words of contempt shall receive condemnation before the Sanhedrin [Supreme Court]. Curse your brother and you will be guilty enough to be destroyed by fire, with the burning trash, at the Valley of Hinnom, outside of Jerusalem (Greek: Gehenna).
Matthew 5:43-44
You have heard it said, 'You should love your neighbor and hate your enemy.' (Leviticus 19:18)
Matthew 12:36
I tell you there will be an account in the Judgment Day for every careless word that men say.
James 3:6
The tongue is like fire, the place of iniquity among our members. It defiles the whole body, and sets on fire the course of our life. It is set ablaze like the ever-burning fires in the Valley of Hinnom (Greek: Gehenna: symbolic of total destruction).
James 3:9-10
We bless Jehovah, the Father, with it. (Psalm 34:1) Then we curse men, who are made after the likeness of God.
1 Peter 2:22-23
He committed no sin and deception was not found in him.
1 Peter 3:9
Do not repay evil for evil, or insult for insult. Do just the opposite. For you were called to inherit a blessing.