19 Yet she multiplied her prostitution, remembering the days of her youth, in which she had played the prostitute in the land of Egypt.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Egypt - The kings of Judah played alternately Egypt against Babylon, and Babylon against Egypt. Jehoahaz was displaced by Necho for Jehoiakim, who then turned to the Chaldaeans, and afterward rebelling sought aid from Egypt. So Zedekiah was continually meditating help from Egypt, against which Jeremiah and Ezekiel were continually protesting.
Yet she multiplied her whoredoms,.... Though the Lord frowned upon the Jews in the times of Jehoiakim and Zedekiah, yet still they went on, and increased their alliances and idolatries with the Heathen nations:
in calling to remembrance the days of her youth, wherein she had played the harlot in the land of Egypt; they called to mind with pleasure the idolatries of their fathers in Egypt, and committed the same themselves; they sent ambassadors to Egypt, in the times of Zedekiah, for help and assistance, and to enter into alliance with them, when they renewed among them the idolatries of that nation; see Ezekiel 17:15.
Israel first "called" her lusts, practised when in Egypt, "to her (fond) remembrance," and then actually returned to them. Mark the danger of suffering the memory to dwell on the pleasure felt in past sins.
By - Remembering her idolatries in Egypt, her alliance with it in days past, which she now resolved to act over again.
*More commentary available at chapter level.