Jeremiah 31:32

We now perceive the design of the Prophet; and this ought to be carefully observed; for it would not be enough to know what the Prophet says, except we also know why he says this or that. The meaning then is, that it ought not to appear strange that God makes a new covenant, because the first had been useless and was of no avail. Then he confirms this, because God made the first covenant when he stretched out his hand to his ancient people, and became their liberator; and yet they made void that covenant. The circumstance as to the time ought to be noticed, for the memory of a recent benefit ought to be a most powerful motive to obedience. For how base an ingratitude it was for those, who had been delivered by the wonderful power of God, to reject his covenant at a time when they had been anticipated by divine mercy? As then they had made void even at that time the covenant of God, it may with certainty be concluded, that there had been no time in which they had not manifested their impiety, and had not been covenant-breakers.

He adds, I however ruled over them, or was Lord over them. Though some confine the verb בעלתי bolti, to the rule exercised by a husband, and this would not be unsuitable, as God not only ruled then over his people, but was also their husband, a similitude which is often used; yet I know not whether this view can be satisfactorily sustained we ought therefore to be satisfied with the general truth, that God had the people under his own authority, as though he had said, that he only used his own right in ruling over them and prescribing to them the way in which they were to live. At the same time the word covenant, was more honorable to the people. For when a king enjoins anything on his people, it is called an edict; but God deals with his own people more kindly, for he descends and appears in the midst of them, that he may bind himself to his people, as he binds the people to himself. We hence see, in short, why God says that he ruled over the people, even because he had purchased them for himself, and yet he had not enjoyed his own right on account of the untameable and perverse disposition of the people.

It ought at the same time to be observed, that the fault is here cast on the people, that the Law was weak and not sufficiently valid, as we see that Paul teaches us in Romans 7:12. For as soon as the weakness of the Law is spoken of, the greater part lay hold of something they deem wrong in the Law, and thus the Law is rendered contemptible: hence the Prophet says here that they had made God’s covenant void, as though he had said, that the fault was not to be sought in the Law that there was need of a new covenant, for the Law was abundantly sufficient, but that the fault was in the levity and the unfaithfulness of the people. We now then see that nothing is detracted from the Law when it is said to be weak and ineffectual; for it is an accidental fault derived from men who do not observe nor keep their pledged faith. There are still more things to be said; but I now, as I have said, touch but briefly on the words of the Prophet. It then follows, —