From this you perceive that the Creed is a doctrine quite different from the Ten Commandments; for the latter teaches indeed what we ought to do, but the former tells what God does for us and gives to us. Moreover, apart from this, the Ten Commandments are written in the hearts of all men; the Creed, however, no human wisdom can comprehend, but it must be taught by the Holy Ghost alone. The latter doctrine [of the Law], therefore makes no Christian, for the wrath and displeasure of God abide upon us still, because we cannot keep what God demands of us; but this [namely, the doctrine of faith] brings pure grace, and makes us godly and acceptable to God. For by this knowledge we obtain love and delight in all the commandments of God, because here we see that God gives Himself entire to us, with all that He has and is able to do, to aid and direct us in keeping the Ten Commandments -- the Father, all creatures; the Son, His entire work; and the Holy Ghost, all His gifts. Let this suffice concerning the Creed to lay a foundation for the simple, that they may not be burdened, so that, if they understand the substance of it, they themselves may afterwards strive to acquire more, and to refer to these parts whatever they learn in the Scriptures, and may ever grow and increase in richer understanding. For as long as we live here, we shall daily have enough to do to preach and to learn this. Part Third. OF PRAYER. The Lord's Prayer. We have now heard what we must do and believe, in which things the best and happiest life consists. Now follows the third part, how we ought to pray. For since we are so situated that no man can perfectly keep the Ten Commandments, even though he have begun to believe, and since the devil with all his power together with the world and our own flesh, resists our endeavors, nothing is so necessary as that we should continually resort to the ear of God, call upon Him, and pray to Him, that He would give, preserve, and increase in us faith and the fulfillment of the Ten Commandments, and that He would remove everything that is in our way and opposes us therein. But that we might know what and how to pray, our Lord Christ has Himself taught us both the mode and the words, as we shall see.