I am the LORD your God, who has brought you out of the land of Egypt, out of the house of bondage.
All Commentaries on Exodus 20:2 Go To Exodus 20
Augustine of Hippo
AD 430
Let [my opponents] insist, if they like, in contradiction to their own assertion, that worship of the one true God and the prohibition against idolatry is not to be preached to the unbaptized but to the already baptized. Do not, however, let them any longer say to those who are going to receive baptism that they need be instructed only on belief in God and after the reception of the sacrament they will be taught the manner of living required by the second precept on the love of neighbor. For both are contained in the law which the people received after the Red Sea, that is, after baptism. The commandments were not so distributed that before crossing the Red Sea the Jews were warned against idolatry and not until after their escape taught to honor father and mother, not to commit adultery, not to kill, and the remaining prescriptions for a rational and godly way of living.