Justin Taylor at Between Two Worlds quotes John Newton, writing in a letter on controversy (The Works of John Newton, 1:273-274):
It seems a laudable service to defend the faith once delivered to the saints; we are commanded to contend earnestly for it, and to convince gainsayers. If ever such defences were seasonable and expedient, they appear to be so in our day, when errors abound on all sides, and every truth of the Gospel is either directly denied, or grossly misrepresented.
And yet we find but very few writers of controversy who have not been manifestly hurt by it. Either they grow in a sense of their own importance, or imbibe an angry contentious spirit, or they insensibly withdraw their attention from those things which are the food and immediate support of the life of faith, and spend their time and strength upon matters which at most are but of a secondary value.
This shews, that, if the service is honourable, it is dangerous. What will it profit a man if he gains his cause and silences his adversary, if at the same time he loses that humble, tender frame of spirit in which the Lord delights, and to which the promise of his presence is made! …
(Justin’s quote continues, see also another post on the same subject.)
Good advice for bloggers and other writers of controversy on the Internet. I can think of others who I think should read these words. But first of all I need them for myself!