While in adults faith and sorrow for sin are required before receiving Baptism, no disposition is required in infants.
They contracted original sin without their knowledge; without their knowledge they are freed from it.
By Baptism they are made heirs of the kingdom of heaven.
They can be made heirs of property, of a kingdom on earth without their consent; why not also of the kingdom of heaven?
Baptism is the first of the seven sacraments which the Church confers upon man. It cleanses us from original sin (actual sin also if the recipient be guilty of any), makes us Christians, children of God, and heirs of heaven. It prepares us for the reception of the other sacraments. By Baptism we all contracted the obligation of believing and practising the doctrines of Jesus Christ as taught us by the true Church. We fulfil this obligation by leading a truly Christian life.
[XV. The Marriage Tie—One and Indissoluble]
"But I say to you that whosoever shall put away his wife, excepting for the cause of fornication, maketh her to commit adultery; and he that shall marry her that is put away committeth adultery" (Matt. v. 33).
"What, therefore, God hath joined together, let no man put asunder" (Matt. xix. 5, 6).
FEW practices of the Church have been productive of more good to society than that concerning Christian marriage. The Christian family is the foundation of Christian society, and Christian marriage is the basis of the Christian family. Without marriage neither the family nor society could exist. Marriage was instituted by God before society existed, and, as a natural consequence, it is subject not to the laws of society, but to the laws of God and His Church. The principal law and necessary condition of Christian marriage is its unity and indissolubility. It is the union of one man with one woman for the purposes intended by the Creator, which union is to last as long as both survive. Such was marriage in the beginning; to such it was restored by our Saviour when He made it a sacrament of His law and a type of His union with His Church.
The practice of the Catholic Church in not permitting a divorce that will allow either party to marry during the life of the other, is clearly taught by Jesus Christ in the 5th chapter of Matthew: "He who puts away his wife maketh her to commit adultery, and he that marrieth her committeth adultery."