“The family therefore holds directly from the Creator the mission and hence the right to educate the offspring, a right inalienable because inseparably joined to the strict obligation, a right anterior to any right whatever of civil society and of the State, and therefore inviolable on the part of any power on earth” (Pius XI., Encyclical Divini illius magistri, 32). Parents are therefore under a grave obligation to see to the religious and moral education of their children (CIC 1917, can. 1113 and CIC 1983, can. 793).
Pope Leo XIII gave us a very concise explanation about the original and first duty of parents concerning the education of their children, and in the first place concerning the education in the Catholic faith. This duty has its foundation in the natural order of the Divine creation: “The common sense of mankind is in such complete accord, that they would be in open contradiction with it who dared maintain that the children belong to the State before they belong to the family, and that the State has an absolute right over their education. Untenable is the reason they adduce, namely that man is born a citizen and hence belongs primarily to the State, not bearing in mind that before being a citizen man must exist; and existence does not come from the State, but from the parents. The children are something of the father, and as it were an extension of the person of the father; and, to be perfectly accurate, they enter into and become part of civil society, not directly by themselves, but through the family in which they were born” (Encyclical Rerum novarum). “And therefore,” says the same Pope Leo XIII, “the father’s power is of such a nature that it cannot be destroyed or absorbed by the State; for it has the same origin as human life itself.” (ibid.). Pope Leo XIII declares in another memorable encyclical, where he thus sums up the rights and duties of parents: “By nature parents have a right to the education of their children, but with this added duty that the education and instruction of the child be in accord with the end for which by God’s blessing it was begotten. Therefore it is the duty of parents to make every effort to prevent any invasion of their rights in this matter, and to make absolutely sure that the education of their children remain under their own control in keeping with their Christian duty, and above all to refuse to send them to those schools in which there is danger of imbibing the deadly poison of impiety” (Encyclical Sapientiae christianae)” (Pius XI., Encyclical Divini illius magistri, 35).
Source: Bishop Schneider: the Catholic family is the first bulwark against the current great apostasy – Voice of the Family