3. The Schmalcald Articles.

4. The Small Catechism.

5. The Large Catechism.

6. The Formula of Concord.

These nine confessions together form the Book of Concord.

THE APOSTLES' CREED CONTAINS, in Three Articles, a statement of what the
Triune God, the Father, the Son, and the Holy Ghost, has done and still
does for us.

Article I. treats of God the Father and His work of _Creation_.

Article II. treats of God the Son and His work of _Redemption_.

Article III. treats of God the Holy Ghost and His work of
_Sanctification_.

THE TRINITY. There is only one God, [Deut. 6:4] but there are three
Persons, Father, Son, and Holy Ghost. Hence, we say that God is the Holy
Trinity, or the Three in One. We cannot understand or explain how God
can be three Persons and yet only one God. But we must not expect with
our finite mind to comprehend the infinite God. We must accept the truth
concerning God as He himself has revealed it to us in His Word. He
plainly tells us that He is One; for He says, "_I_ am the Lord thy God;
thou shalt have no other gods before _Me_." [Exod. 20:2-3] Yet He also
plainly tells us that there are three Persons. They are expressly