Psalms 40:1-3 I waited patiently for the Lord; and he inclined unto me, and heard my cry. 2. He brought me up also out of an horrible pit, out of the miry clay, and set my feet upon a rock, and established my goings. 3. And he hath put a new song in my mouth, even praise unto our God: many shall see it, and fear, and shall trust in the Lord.

"But I say to you," the Lord says, "love your enemies, do good to those who hate you, pray for those who persecute you." Why did he command these things? So that he might free you from hatred, sadness, anger and grudges, and might grant you the greatest possession of all, perfect love, which is impossible to possess except by the one who loves all equally in imitation of God.
St. Maximus the Confessor
A Christian should distinct sin from sinner, although it in no way means tolerance to distortion of truth.