John Gill Bible Commentary

For the house of Israel and the house of Judah have dealt very treacherously against me,.... This is a reason why such orders are given to the army of the Chaldeans to ascend the walls of Jerusalem and destroy them; namely, the perfidy both of the ten tribes, signified by the house of Israel; so Abarbinel; and of the two tribes of Judah and Benjamin, signified by the house of Judah; which was very great, and attended with aggravated circumstances; instances of it follow. The Targum is, "they have dealt very falsely with my word:'' saith the Lord; for this was not the charge of the prophet against them, but of the Lord himself. This can only be understood of such of the ten tribes as remained in Judea, for the body of that people had been carried captive mary years ago; whose sins Judah imitated, and, being also the posterity of Israel, may be so called.