Quote by J.I. Packer

“Sub-Christian? Some read the Old Testament as so much primitive groping and guesswork, which the New Testament sweeps away. But “God . . . spoke through the prophets” (Hebrews 1:1), of whom Moses was the greatest (see Deuteronomy 34:10-12); and his Commandments, given through Moses, set a moral and spiritual standard for living which is not superseded, but carries God’s authority forever. Note that Jesus’ twofold law of love, summarizing the Commandments, comes from Moses’ own God-taught elaboration of them (for that is what the Pentateuchal law-codes are). “Love your God” is from Deuteronomy 6:5, “love your neighbor” from Leviticus 19:18. It cannot be too much stressed that Old Testament moral teaching (as distinct from the Old Testament revelation of grace) is not inferior to that of the New Testament, let alone the conventional standards of our time. The barbarities of lawless sex, violence, and exploitation, cutthroat business methods, class warfare, disregard for one’s family, and the like are sanctioned only by our modern secular society. The supposedly primitive Old Testament, and the 3000-year-old Commandments in particular, are bulwarks against all these things. But (you say) doesn’t this sort of talk set the Old Testament above Christ? Can that be right? Surely teaching that antedates him by a millennium and a quarter must be inferior to his? Surely the Commandments are too negative, always and only saying “don’t . . .”? Surely we must look elsewhere for full Christian standards? Fair queries; but there is a twofold answer. First, Christ said in the Sermon on the Mount (Matthew 5:17) that he came not to destroy the law but to fulfill it; that is, to be, and help others to be, all that God in the Commandments had required. What Jesus destroyed was inadequate expositions of the law, not the law itself (Matthew 5:21-48; 15:1-9; etc.). By giving truer expositions, he actually republished the law. The Sermon on the Mount itself consists of themes from the Decalogue developed in a Christian context. Second, the negative form of the Commandments has positive implications. “Where a sin is forbidden, the contrary duty is commanded” (Westminster Larger Catechism, question 99). The negative form was needed at Sinai (as in the West today) to curb current lawlessness which threatened both godliness and national life. But the positive content pointed up by Christ—loving God with all one’s powers, and one’s neighbor as oneself—is very clearly there, as we shall see.”