They are rather to be admonished often to view Baptism as the scriptures speak of it, namely that it is a work of the Holy Trinity, who is the real baptizer, through the mouth and the hand of the minister [diener]. And it is such an administration where God the Father through Baptism saves, Titus 3; where God the Son through the washing in the word purifies, Eph. 5; through which the Holy Spirit gives a man new birth and renewal, John 3; Titus 3. This is so because we are baptized into the death of Christ, Rom. 6, and into his resurrection, I Pet. 3, and in summary, because in Baptism Christ with all his merits is put on, Gal. 3. And thus in Baptism the Holy Trinity makes with us a covenant of a good conscience for the sake of Christ, I Pet. 3 through the forgiveness of sins, Acts 2 and 22, unto eternal salvation, Mark 16.
-- Martin Chemnitz