Faith has no less need of the word than the fruit of a tree has of a living root; because, as David testifies, none can hope in God but those who kno… - John Calvin

Scripture points out this difference between believers and unbelievers; the latter, as old slaves of their incurable perversity, cannot endure the rod; but the former, like children of noble birth, profit by repentance and correction.

We may also fitly remember that Satan has his miracles, which, though they are deceitful tricks rather than true powers, are such a sort as to mislead the simple-minded and untutored [2 Thes, 2:9-10] ... Idolatry has been nourished by wonderful miracles, yet these are not sufficient to sanction the superstition either of magicians or of idolators.

Then let every one of us, being warned by this sentence of the angel, acknowledge that he as yet cleaves to first principles, or, at least, does not comprehend all those things which are necessary to be known; and that therefore progress is to be made to the very end of life: for this is our wisdom, to be learners to the end.