"On this account, as the Augsburg Confession in Article XI says, we also retain private absolution, and teach that it is God's command that we believe such absolution, and should regard it as sure that, when we believe the word of absolution, we are as truly reconciled to God as though we had heard a voice from heaven, as the Apology explains this article. This consolation would be entirely taken from us if we were not to infer the will of God towards us from the call which is made through the Word and through the Sacraments."
Formula of Concord, SD, XI. #38. Of God's Eternal Election. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 1075. Tappert, p. 622. Heiser, p. 289.
"Now, it is not our faith that makes the sacrament, but only the true word and institution of our almighty God and Savior Jesus Christ, which always is and remains efficacious in the Christian Church, and is not invalidated or rendered inefficacious by the worthiness or unworthiness of the minister, nor by the unbelief of the one who receives it."
Formula of Concord, SD VII, #89. Holy Supper. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 1003. Tappert, p. 585. Heiser, p. 272.
"Of Confession they teach that Private Absolution ought to be retained in the churches, although in confession an enumeration of all sins is not necessary. For it is impossible according to the Psalm: 'Who can understand his errors?' Psalm 19:12."
Augsburg Confession, XI. Confession. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 47. Tappert, p. 34. Heiser, p. 13. Psalm 19:12.
"We further believe that in this Christian Church we have forgiveness of sin, which is wrought through the holy Sacraments and Absolution, moreover, through all manner of consolatory promises of the entire Gospel. Therefore, whatever is to be preached, concerning the Sacraments belongs here, and in short, the whole Gospel and all the offices of Christianity, which also must be preached and taught without ceasing. For although the grace of God is secured through Christ, and sanctification is wrought by the Holy Ghost through the Word of God in the unity of the Christian Church, yet on account of our flesh which we bear about with us we are never without sin."
The Large Catechism, The Creed, Article III. #54. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 693. Tappert, p. 417. Heiser, p. 195.
"Of Repentance they teach that for those who have fallen after Baptism there is remission of sins whenever they are converted; and that the Church ought to impart absolution to those thus returning to repentance. Now, repentance consists properly of these two parts: One is contrition, that is, terrors smiting the conscience through the knowledge of sin; the other is faith, which is born of the Gospel, or of absolution, and believes that, for Christ's sake, sins are forgiven, comforts the conscience, and delivers it from terrors. Then good works are bound to follow, which are the fruits of repentance."
Augsburg Confession, Article XII. Repentance. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 49. Tappert, p. 34f. Heiser, p. 13.
"If we call Sacraments rites which have the command of God, and to which the promise of grace has been added, it is easy to decide what are properly Sacraments...Therefore Baptism, the Lord's Supper, and Absolution, which is the Sacrament of Repentance, are truly Sacraments. For these rites have God's command and the promise of grace, which is peculiar to the New Testament. For when we are baptized, when we eat the Lord's body, when we are absolved, our hearts must be firmly assured that God truly forgives us for Christ's sake. And God, at the same time, by the Word and by the rite, moves hearts to believe and conceive faith, just as Paul says, Romans 10:17: 'Faith cometh by hearing.' But just as the Word enters the ear in order to strike our heart, so the rite itself strikes the eye, in order to move the heart. The effect of the Word and of the rite is the same..."
Apology Augsburg Confession, XIII,#3. Number/Use Sacraments. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 309. Tappert, p. 211. Heiser, p. 94.