A minister who was about to publish an article criticizing a fellow minister for errors in his theology, wrote to John Newton of his intention. Newton’s reply was meant to reference controversies in theology, but I find it to be helpful for many of life’s controversies.

Dear Sir,

As you are likely to be engaged in controversy, and your love of truth is joined with a natural warmth of temper, my friendship makes me solicitous on your behalf. You are of the strongest side; for truth is great, and must prevail; so that a person of abilities inferior to yours might take the field with a confidence of victory. I am not therefore anxious for the event of the battle…. Read the rest of the letter here.

Excerpts:

…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….

…If our zeal is embittered by expressions of anger, invective, or scorn, we may think we are doing service of the cause of truth, when in reality we shall only bring it into discredit. The weapons of our warfare, and which alone are powerful to break down the strongholds of error, are not carnal, but spiritual; arguments fairly drawn from Scripture and experience, and enforced by such a mild address, as may persuade our readers, that, whether we can convince them or not, we wish well to their souls, and contend only for the truth’s sake; if we can satisfy them that we act upon these motives, our point is half gained; they will be more disposed to consider calmly what we offer; and if they should still dissent from our opinions, they will be constrained to approve our intentions….

…There is a principle of self, which disposes us to despise those who differ from us; and we are often under its influence, when we think we are only showing a becoming zeal in the cause of God….

…Whatever it be that makes us trust in ourselves that we are comparatively wise or good, so as to treat those with contempt who do not subscribe to our doctrines, or follow our party, is a proof and fruit of a self-righteous spirit….

…Self-righteousness can feed upon doctrines as well as upon works; and a man may have the heart of a Pharisee, while his head is stored with orthodox notions of the unworthiness of the creature and the riches of free grace. Yea, I would add, the best of men are not wholly free from this leaven; and therefore are too apt to be pleased with such representations as hold up our adversaries to ridicule, and by consequence flatter our own superior judgments. Controversies, for the most part, are so managed as to indulge rather than to repress his wrong disposition; and therefore, generally speaking, they are productive of little good. They provoke those whom they should convince, and puff up those whom they should edify. I hope your performance will savor of a spirit of true humility, and be a means of promoting it in others….

…Be upon your guard against admitting anything personal into the debate. If you think you have been ill treated, you will have an opportunity of showing that you are a disciple of Jesus, who “when he was reviled, reviled not again; when he suffered, he threatened not.” This is our pattern, thus we are to speak and write for God, “not rendering railing for railing, but contrariwise blessing; knowing that hereunto we are called.” The wisdom that is from above is not only pure, but peaceable and gentle; and the want of these qualifications, like the dead fly in the pot of ointment, will spoil the savor and efficacy of our labors….

…If we act in a wrong spirit, we shall bring little glory to God, do little good to our fellow creatures, and procure neither honor nor comfort to ourselves. If you can be content with showing your wit, and gaining the laugh on your side, you have an easy task; but I hope you have a far nobler aim, and that, sensible of the solemn importance of gospel truths, and the compassion due to the souls of men, you would rather be a means of removing prejudices in a single instance, than obtain the empty applause of thousands. Go forth, therefore, in the name and strength of the Lord of hosts, speaking the truth in love; and may he give you a witness in many hearts that you are taught of God, and favored with the unction of his Holy Spirit.