I answer that, As in speculative sciences men are persuaded to assent to the conclusions by means of syllogistic arguments, so too in every law, men are persuaded to observe its precepts by means of punishments and rewards.  Now it is to be observed that, in speculative sciences, the means of persuasion are adapted to the conditions of the pupil:  wherefore the process of argument in sciences should be ordered becomingly, so that the instruction is based on principles more generally known.  And thus also he who would persuade a man to the observance of any precepts, needs to move him at first by things for which he has an affection; just as children are induced to do something, by means of little childish gifts.  Now it has been said above (Q. 98, AA. 1, 2, 3) that the Old Law disposed men to (the coming of) Christ, as the imperfect in comparison disposes to the perfect, wherefore it was given to a people as yet imperfect in comparison to the perfection which was to result from Christ’s coming:  and for this reason, that people is compared to a child that is still under a pedagogue (Gal. 3:24).  But the perfection of man consists in his despising temporal things and cleaving to things spiritual, as is clear from the words of the Apostle (Phil. 3:13, 15):  “Forgetting the things that are behind, I stretch [Vulg.:  ‘and stretching’] forth myself to those that are before . . .  Let us therefore, as many as are perfect, be thus minded.”  Those who are yet imperfect desire temporal goods, albeit in subordination to God:  whereas the perverse place their end in temporalities.  It was therefore fitting that the Old Law should conduct men to God by means of temporal goods for which the imperfect have an affection.

Reply Obj. 1:  Covetousness whereby man places his end in temporalities, is the bane of charity.  But the attainment of temporal goods which man desires in subordination to God is a road leading the imperfect to the love of God, according to Ps. 48:19:  “He will praise Thee, when Thou shalt do well to him.”

Reply Obj. 2:  Human law persuades men by means of temporal rewards or punishments to be inflicted by men:  whereas the Divine law persuades men by means of rewards or punishments to be received from God.  In this respect it employs higher means.

Reply Obj. 3:  As any one can see, who reads carefully the story of the Old Testament, the common weal of the people prospered under the Law as long as they obeyed it; and as soon as they departed from the precepts of the Law they were overtaken by many calamities.  But certain individuals, although they observed the justice of the Law, met with misfortunes—­either because they had already become spiritual (so that misfortune might withdraw them all the more from attachment to temporal things, and that their virtue might be tried)—­or because, while outwardly fulfilling the works of the Law, their heart was altogether fixed on temporal goods, and far removed from God, according to Isa. 29:13 (Matt. 15:8):  “This people honoreth Me with their lips; but their hearts is far from Me.” ________________________