Romans 12:9

Love is to be sincere and active (the real thing, without guile and hypocrisy). Hate what is evil (detest all ungodliness, do not tolerate wickedness); hold on tightly to what is good. 

Love is a decision, not an emotion. We must choose to love despite the actions of others. Evil cannot be tolerated because it will contaminate the believer and cause our faith to weaken. We cannot compromise what is Good! Those things which are good keep our faith alive and the promises of God real.