Genesis 9:6

6. "Whoever sheds the blood of man, by man shall his blood be shed; for in the image of God has God made man.

Exodus 21:12, 15-17

12. "Anyone who strikes a man and kills him shall surely be put to death.

15. "Anyone who attacks his father or his mother must be put to death.
16. "Anyone who kidnaps another and either sells him or still has him when he is caught must be put to death.
17. "Anyone who curses his father or mother must be put to death.

Ephesians 4:29-32

29. Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen.
30. And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption.
31. Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice.
32. Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you.