Adam Clarke on Matthew 16:17

Blessed art thou, Simon Bar-jona - Or Simon, son of Jonah; so Bar-jonah should be translated, and so it is rendered by our Lord, Joh 1:42. Flesh and blood - i.e. Man; - no human being hath revealed this; and though the text is literal enough, yet every body should know that this is a Hebrew periphrasis for man; and the literal translation of it here, and in Gal 1:16, has misled thousands, who suppose that flesh and blood signify carnal reason, as it is termed, or the unregenerate principle in man. Is it not evident, from our Lord's observation, that it requires an express revelation of God in a man's soul, to give him a saving acquaintance with Jesus Christ; and that not even the miracles of our Lord, wrought before the eyes, will effect this? The darkness must be removed from the heart by the Holy Spirit, before a man can become wise unto salvation.