John Newton, Memoirs of the Life of the Late Rev. William Grimshaw (London: 1799), pages 86–87:
They who avow the doctrines distinguished by the name of Calvinism, ought, if consistent with their own principles, to be the most gentle and forbearing of all men, in meekness instructing them that oppose. With us, it is a fundamental maxim, that a man can receive nothing but what is given him from heaven (John 3:27). If, therefore, it has pleased God to give us the knowledge of some truths, which are hidden from others, who have the same outward means of information; it is a just reason for thankfulness to him, but will not justify our being angry with them; for we are no better or wiser than they in ourselves, and might have opposed the truths which we now prize, with the same eagerness and obstinacy, if his grace had not made us to differ. If the man, mentioned in John 9, who was born blind, on whom our Lord graciously bestowed the blessing of sight, had taken a cudgel and beat all the blind men he met, because they would not see, his conduct would have greatly resembled that of an angry Calvinist.