They are returned to the former iniquities of their fathers, who refused to hear my words: so these likewise have gone after strange gods, to serve them: the house of Israel, and the house of Juda have made void my covenant, which I made with their fathers.

They have turned back to the iniquities of their first fathers, Who refused to hear My words, And they have gone after other gods to serve them, The house of Israel, and the house of Judah, Have made void My covenant, that I made with their fathers.

They are turned back to the sins of their fathers, who would not give ear to my words; they have gone after other gods and become their servants: the people of Israel and the people of Judah have not kept the agreement which I made with their fathers.

They have returned to the former iniquities of their fathers, who refused to listen to my words. And likewise, they have gone after strange gods, so that they may serve them. The house of Israel and the house of Judah have treated as void my covenant, which I made with their fathers.

Reversi sunt ad iniquitates patrum suorum superiorum (qui ante fuerunt) qui noluerunt audire verba mea; et ipsi ambularunt post deos alienos, ut servirent ipsis; dissoluerunt domus Israel et domus Jehudah foedus meum, quod pepigeram cum patribus ipsorum.

Their forefathers - literally, "their fathers, the first ones:" in allusion to the idolatries committed in the wilderness, and by the generations whose history is given in the Book of Judges.
And they went after - Rather, yea! they have walked "after other gods to serve them." The "they" refers to the men of Jeremiah's day.

They are turned back to the iniquities of their forefathers - A great reformation had taken place under the reign of Josiah, and the public worship of idols had been abolished, and most of the high places destroyed; but under the reign of his son and his successors, they had turned back again to idolatry, and were become worse than ever. It required a captivity to cure them of this propensity: and God sent one: after that, there was no idolatry among the Jews.

They are turned back to the iniquities of their forefathers,.... According to Kimchi, this prophecy was delivered out in the times of Jehoiakim. There had been a reformation in the reign of Josiah, but now they had rebelled against the Lord, and had returned to their former idolatries that had been practised in the times of Amon, Manasseh, and Ahaz:
which refused to hear my words; sent unto them by the prophets, Isaiah, and others:
and they went after other gods to serve them; not their forefathers, though it was true of them; but the then present generation, that were in the conspiracy and rebellion against God; they put their schemes into execution, and worshipped and served the gods of the nations:
the house of Israel and the house of Judah have broken my covenant which I made with their fathers; by their many transgressions, and especially by their idolatry; the house of Israel, or the ten tribes, had done so, many years ago, and were carried captive; and the house of Judah, or the two tribes of Benjamin and Judah, committing the same iniquities, might justly expect the like treatment.