Leviticus 19:1-2, 17-18

The LORD said to Moses: Speak to the whole Israelite community and tell them: Be holy, for I, the LORD your God, am holy.

You shall not hate any of your kindred in your heart. Reprove your neighbor openly so that you do not incur sin because of that person. Take no revenge and cherish no grudge against your own people. You shall love your neighbor as yourself. I am the LORD.