4. Hear, O Israel. When Moses proclaims that God is One, the statement is not confined to His sole essence, which is incomprehensible, but must be also understood of His power and glory, which had been manifested to the people; as though he had said, that they would be guilty of rebellion unless they abode in the One God, who had laid them under such obligations to Himself. Therefore he not only calls him Jehovah, but at the same time infers that He is the God of that people whom he addresses, “Thy God.” Thus all other deities are brought to nought, and the people are commanded to fly and detest whatever withdraws their minds from the pure knowledge of Him; for although His name may be left to Him, still He is stripped of His majesty, as soon as He is mixed up with a multitude of others. Thus He says by Ezekiel, (Ezekiel 20:39,) “Go ye, serve ye every one his idols;” in which words He not only repudiates all mixed worship, but testifies that He would rather be accounted nothing than not be worshipped undividedly. The orthodox Fathers aptly used this passage against the Arians;²⁸⁰²⁸⁰     Vide St. Ath. Or. 3, contra At. sec. 7, 8. Jones of Nayland’s “Cath. Doctrine of Trinity,” chap. 4:2, sums up the argument concisely and well. because, since Christ is everywhere called God, He is undoubtedly the same Jehovah who declares Himself to be the One God; and this is asserted with the same force respecting the Holy Spirit.

13. Thou shalt fear the Lord thy God. Hence it is more evident why He has just declared that there is One God, viz., that He alone may be undividedly worshipped; for unless our minds are fixed on Him alone, religion is torn, as it were, into divers parts, and this is soon followed by a labyrinth of errors. But, first, he calls for reverence, and then for the worship which may testify and demonstrate it. “Fear” contains in it the idea of subjection, when men devote themselves to God, because His terrible majesty keeps them in their proper place. Hence results worship, which is the proof of piety. But we must observe that the fear enjoined in this passage is voluntary, so that men influenced by it desire nothing more than to obey God. When I stated, therefore, that God brings us under the yoke by a sense of His power and greatness, I did not understand that a violent and servile obedience is extorted from us; I only wished to affirm that men cannot be induced to obey God, before they have been subdued by fear; because their innate corruption always carries with it a contempt for religion, and a spirit of licentiousness. Therefore, in Jeremiah (Jeremiah 5:22), in order to exhort men to fear, He sets forth His terrible power in restraining the strength of the sea; but this fear leads on His true worshippers further. In the other passage which we have subjoined from Deuteronomy 10, the word cleave again confirms the truth, that as soon as men decline from God in the least degree, His worship is corrupted. For this is the meaning of that union with Himself to which He calls His worshippers, that they should be, as it were, glued to Him, and should not look elsewhere.

16. Ye shall not tempt the Lord. Since the doctrine here should undoubtedly be referred to the First Commandment, we gather from it that this is the main foundation of piety, to give to Him what is His own, and to diminish nothing from the prerogative which He claims. As we have already seen, unbelief was the fountain and cause of the tempting in Massah, for when the people neither relied on God’s providence nor rested on His paternal love, they burst forth into impatience, and at length advanced so far as to think that God was not with them, unless He complied with their wicked lusts. We perceive, then, that God cannot be rightly worshipped unless when He has His peculiar attributes acknowledged. Whence, also, it appears that true piety cannot be dissevered from faith, because, if we confess that every desirable good dwells in Him, we shall expect and seek for all things from Him; we shall also patiently and contentedly allow ourselves to be governed by His will, and, in a word, give up ourselves and our lives into His hands.