Many have written of the fruits of the mass, and indeed have greatly exalted them; nor do I question the value of these fruits. But take heed that you regard them all, compared to this one thing, as the body compared to the soul. God has here prepared for our faith a pasture, table and feast; [Ps. 23] but faith is fed with nothing except the Word of God alone. Therefore you must take heed above all things to the words, exalt them, highly esteem them, and hold them fast; then you will have not simply the little drops of blessing[11] that drip from the mass, but the very head-waters of faith, from which springs and flows all that is good, as the Lord says in John vii, "Whosoever believeth in Me, out of his belly shall flow streams of living water" [John 4:14, 15]; again: "Whosoever shall drink of the water which I give, he shall never thirst, and there shall be in him a spring of living water unto everlasting life." We see, then, the first abuse of the mass is this—that we have lost the chief blessing, to wit, the testament and the faith. What consequences this has had we now shall see. 19. It follows of necessity, where faith and the Word or promise of God decline or are neglected, that there arise in their place works and a false, presumptuous trust in them. For where there is no promise of God there is no faith. Where there is no faith, there everyone presumptuously undertakes to better himself by means of works, and to make himself well-pleasing to God. When this happens, false security and presumption arise therefrom, as though man were well-pleasing to God because of his own works. When this does not happen, the conscience has no rest, and knows not what to do, that it may become well-pleasing to God. [Sidenote: Abuses of the Mass: 2. The Mass a Good Work]