I do not doubt that all those who have received Baptism anywhere and from whomever do have Baptism, as long as it was consecrated with the words of the Gospel and they received it without pretence on their part and with some degree of faith. However, it would not avail them for their spiritual salvation if they were lacking in that charity by which they might be implanted in the Catholic Church.
Saint AugustineThe customs of God's people and the institutions of our ancestors are to be considered as laws. And those who throw contempt on the customs of the Church ought to be punished as those who disobey the law of God.
Saint Augustine