Leviticus 19:16-18

You shall not go about as a talebearer among your people; nor shall you take a stand against the life of your neighbor: I am the LORD. ‘You shall not hate your brother in your heart. You shall surely rebuke your neighbor, and not bear sin because of him. You shall not take vengeance, nor bear any grudge against the children of your people, but you shall love your neighbor as yourself: I am the LORD.