Jamieson, Fausset and Brown on Jeremiah 22:20

20. Delivered in the reign of Jehoiachin (Jeconiah or Coniah), son of Jehoiakim; appended to the previous prophecy respecting Jehoiakim, on account of the similarity of the two prophecies. He calls on Jerusalem, personified as a mourning female, to go up to the highest points visible from Jerusalem, and lament there (see on Jr 3:21) the calamity of herself, bereft of allies and of her princes, who are one after the other being cast down.

Bashan--north of the region beyond Jordan; the mountains of Anti-libanus are referred to (Psa 68:15).

from the passages--namely, of the rivers (Jud 12:6); or else the borders of the country (1Sa 13:23; Is 10:29). The passes (1Sa 14:4). Maurer translates, "Abarim," a mountainous tract beyond Jordan, opposite Jericho, and south of Bashan; this accords with the mention of the mountains Lebanon and Bashan (Nu 27:12; 33:47).

lovers--the allies of Judea, especially Egypt, now unable to help the Jews, being crippled by Babylon (2Ki 24:7).