the hill, &c. = Mount of Olives! Hence called "the Mount of Corruption" (2Ki_23:13).
Molech. Generally has the article and denotes the king-idol (Lev_18:21; Lev_20:2, Lev_20:3, Lev_20:4, Lev_20:5; Lev_11:7. 2Ki_23:10. Jer_32:35). Isa_30:33 with Isa_57:9 may be Molech, the idol, and not Melek, "king".