You are likely to be engaged in controversy. . . . You are of the strongest side; for truth is great, and must prevail. . . . I am not therefore anxious for the [outcome] of the battle; but I would have you more than a conqueror, and to triumph, not only over your adversary, but over yourself. If you cannot be vanquished, you may be wounded. To preserve you from such wounds as might give you cause of weeping over your conquests, I would present you with some considerations, which, if duly attended to, will do you the service of a great coat of mail. . . . I may reduce my advice to three heads, respecting your opponent, the public and yourself.

As to your opponent, I wish that before you set pen to paper against him, and during the whole time you are preparing your answer, you may commend him by earnest prayer to the Lord's teaching and blessing. This practice will have a direct tendency to conciliate your heart to love and pity him; and such a disposition will have a good influence upon every page you write. If [he is a believer] . . . 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. But if [he is not a believer], . . . he is a more proper object of your compassion than of your anger. Alas! "He knows not what he does." But you know who has made you to differ. If God, in his sovereign pleasure, had so appointed, you might have been as he is now; and he, instead of you, might have been set for the defense of the gospel. You were both equally blind by nature. If you attend to this, you will not reproach or hate him, because the Lord has been pleased to open your eyes, and not his. . . . If you write with a desire of being an instrument of correcting mistakes, you will of course be cautious of laying stumbling blocks in the way of the blind or of using any expressions that may exasperate their passions, confirm them in their principles, and thereby make their conviction, humanly speaking, more impracticable. . . .