Also they teach that one holy Church is to continue forever. The Church is the congregation of saints, in which the Gospel is rightly taught and the Sacraments are rightly administered. And to the true unity of the Church it is enough to agree concerning the doctrine of the Gospel and the administration of the Sacraments. Nor is it necessary that human traditions, that is, rites or ceremonies, instituted by men, should be everywhere alike. As Paul says: One faith, one Baptism, one God and Father of all, etc. Eph. 4, 5. 6. Article VIII: What the Church Is. Although the Church properly is the congregation of saints and true believers, nevertheless, since in this life many hypocrites and evil persons are mingled therewith, it is lawful to use Sacraments administered by evil men, according to the saying of Christ: The Scribes and the Pharisees sit in Moses' seat, etc. Matt. 23, 2. Both the Sacraments and Word are effectual by reason of the institution and commandment of Christ, notwithstanding they be administered by evil men. They condemn the Donatists, and such like, who denied it to be lawful to use the ministry of evil men in the Church, and who thought the ministry of evil men to be unprofitable and of none effect. Article IX: Of Baptism. Of Baptism they teach that it is necessary to salvation, and that through Baptism is offered the grace of God, and that children are to be baptized who, being offered to God through Baptism are received into God's grace. They condemn the Anabaptists, who reject the baptism of children, and say that children are saved without Baptism. Article X: Of the Lord's Supper. Of the Supper of the Lord they teach that the Body and Blood of Christ are truly present, and are distributed to those who eat the Supper of the Lord; and they reject those that teach otherwise. Article XI: Of Confession. 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? Ps. 19, 12. Article XII: Of Repentance. 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. They condemn the Anabaptists, who deny that those once justified can lose the Holy Ghost. Also those who contend that some may attain to such perfection in this life that they cannot sin.