And not as Moses, who put a veil over his face, that the children of Israel could not steadfastly see the end of that which is abolished:
All Commentaries on 2 Corinthians 3:13 Go To 2 Corinthians 3
Augustine of Hippo
AD 430
The truth is that the Old Testament of Mount Sinai, “producing children of slavery,” now serves no purpose but to bear witness to the New. Otherwise, the words of St. Paul would not be true: “Yes, down to this very day when Moses is read, the veil covers their hearts”; but when any of them turn from the Old Testament to Christ, “the veil shall be taken away.” What happens is that the deepest aspirations of those who make the change are shifted from the Old Testament to the New, whereupon they begin to look for spiritual—rather than earthly—happiness.