Exodus 28:43
43 and they shall be on Aaron and on his sons when they go into the tent of meeting or when they come near the altar to minister in the Holy Place, lest they zbear guilt and die. aThis shall be a statute forever for him and for his offspring after him.
Leviticus 19:17
17 p“You shall not hate your brother in your heart, but qyou shall reason frankly with your neighbor, lest you rincur sin because of him.