1. Among the other [truths] proclaimed by the apostle, there is also this one, "That flesh and blood cannot inherit the kingdom of God." This is [the passage] which is adduced by all the heretics in support of their folly, with an attempt to annoy us, and to point out that the handiwork of God is not saved. They do not take this fact into consideration, that there are three things out of which, as I have shown, the complete man is composed—flesh, soul, and spirit. One of these does indeed preserve and fashion [the man]—this is the spirit; while as to another it is united and formed—that is the flesh; then [comes] that which is between these two—that is the soul, which sometimes indeed, when it follows the spirit, is raised up by it, but sometimes it sympathizes with the flesh, and falls into carnal lusts. Those then, as many as they be, who have not that which saves and forms [us] into life [eternal], shall be, and shall be called, [mere] flesh and blood; for these are they who have not the Spirit of God in themselves. Wherefore men of this stamp are spoken of by the Lord as "dead;" for, says He, "Let the dead bury their dead," because they have not the Spirit which quickens man.