Whether the Old Law contains only one precept?

❌ Objection 1 : It would seem that the Old Law contains but one precept. Because a law is nothing else than a precept, as stated above (Question [90], Articles [2],3). Now there is but one Old Law. Therefore it contains but one precept.

❌ Objection 2 : Further, the Apostle says (Rm. 13:9): "If there be any other commandment, it is comprised in this word: Thou shalt love thy neighbor as thyself." But this is only one commandment. Therefore the Old Law contained but one commandment.

❌ Objection 3 : Further, it is written (Mt. 7:12): "All things . . . whatsoever you would that men should do to you, do you also to them. For this is the Law and the prophets." But the whole of the Old Law is comprised in the Law and the prophets. Therefore the whole of the Old Law contains but one commandment.