Showing Kindness to Those I Disagree With

Convicting thought from John Newton's "On Controversy":

“If you account [your opponent] a believer, though greatly mistaken in the subject of debate between you, the words of David to Joab concerning Absalom are very applicable: ‘Deal gently with him for my sake.’ The Lord loves him and bears with him; therefore you must not despise him, or treat him harshly. The Lord bears with you likewise, and expects that you should show tenderness to others, from a sense of the much forgiveness you need yourself. In a little while you will meet in heaven; he will then be dearer to you than the nearest friend you have upon earth is to you now. Anticipate that period in your thoughts; and though you may find it necessary to oppose his errors, view him personally as a kindred soul, with whom you are to be happy in Christ forever.”