It is very common for persons, when they find a subject much disputed, especially if it is by those whom they account good men, immediately to conclude that it must be a subject of but little consequence, a mere matter of speculation. Upon such persons religious controversies have a very ill effect: for, finding difficulty attending the coming at the truth, and, at the same time, a disposition to neglect it, and to pursue other things; they readily avail themselves of what appears, to them, a plausible excuse, lay aside the inquiry, and sit down and indulge in a spirit of scepticism....But, if all disputed subjects are to be reckoned matters of mere speculation, we shall have nothing of any real use left in religion.Complete Works, 233b.
Of all people who engage in controversy, we, who are called Calvinists, are most expressly bound by our own principles to the exercise of gentleness and moderation.