(3) And therefore it is that Christ saith: If you had Faith as a Grain of Mustard-seed, you might say to the Mountain, Cast thy self into the Sea, and it shall be done. And i in this Power Men have raised the Dead, and healed the Sick, by the Word, and the Virtue and Power of the Spirit, or else they could not have been able to have done such Things, if they had not stood in the Power of all the three Principles.

(48) Christ said, “He that believeth not,” or will not or cannot believe, “shall be damned.” It is so of a truth; for a man, while he is in this present time, hath not knowledge; and he cannot attain unto it, unless he first believe. And he who would know before he believeth, cometh never to true knowledge. We speak not here of the articles of the Christian faith, for every one believeth them, and they are common to every Christian man, whether he be sinful or saved, good or wicked; and they must be believed in the first place, for without that, one cannot come to know them. But we are speaking of a certain Truth which it is possible to know by experience, but which ye must believe in, before that ye know it by experience, else ye will never come to know it truly. This is the faith of which Christ speaketh in that saying of His.

(10) These things should seem to thee, Asclepius, if thou dost understand them, true; but if thou dost not understand, things not to be believed. To understand is to believe, to not believe is not to understand. My word (logos) doth go before [thee] to the truth. But mighty is the mind, and when it hath been led by word up to a certain point, it hath the power to come before [thee] to the truth. And having thought o'er all these things, and found them consonant with those which have already been translated by the reason, it hath [e'en now] believed, and found its rest in that Fair Faith. To those, then, who by God['s good aid] do understand the things that have been said [by us] above, they're credible; but unto those who understand them not, incredible. Let so much, then, suffice on thought-and-sense.