God, and fear him, and keep his ambulabitis, illumque timebitis, ac
HARMONY OF THE LAW · VOLUME 1
4. Ye shall walk after the Lord your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him.
4. Post Jehovam Deum vestrum ambulabitis, illumque timebitis, ac praecepta ejus custodietis: voci ejus obedietis, et eum coletis, eique adhaerebitis.
After having restrained the Israelites from the strange delusions of the Gentiles, Moses now forbids them from being too credulous if false teachers should arise from among themselves, and warns them diligently to beware of all novel inventions, and not to turn aside in the very least degree from the Law, at the instigation of any one. For there is peril to be apprehended, not only from professed and manifest enemies, or from foreign superstitions, but Satan plots also by means of intestine deceits, and abuses the holy name of God in order to betray us. Therefore it behoves that the faith of the godly should not only be externally fortified and protected by the ramparts of the word, lest corruption should creep in from without, but also that it should be garrisoned within by the same word, lest novel imaginations should secretly insinuate themselves and destroy the purity of doctrine. Moreover, we gather from this prohibition that there is such certainty in the divine doctrines as to prevent our faith from being undermined or shaken, provided it has put forth into them living roots, and is firmly grounded upon them. For it would be vain for God to warn us against giving admission to false teachers, unless He, at the same time, shewed the means by which they were to be guarded against. And assuredly nothing can be more improbable than that religion should be ambiguous; and since the rule and definition of it is faithfully prescribed and set forth in the Law, justly does God require of His people that they should not waver, but constantly persist in the truth delivered to them. For truly does Isaiah declare respecting the Law, that in it it has not been said in vain to the seed of Jacob, that they should seek God's face.297 (Isaiah 45:19.) But, in seeking God, it would not be sufficient to teach what is right, unless men's minds are established in it; it is requisite, therefore, that religion should be sure and firm, or it will not be duly ordered. Nor is there any doubt that what Paul witnesses of the Gospel was true also of the Law, viz., that it armed its disciples against all the storms of temptation, that they "should be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men," etc. (Ephesians 4:14.) But the words before us, when examined more closely and regularly, will shew, with greater clearness, the aim of the matter.
See note on Deuteronomy 30:11, ante.