You may have already seen this but just in case...

Any influence which demands from us the sacrifice of what we hold most dear. Thus, war is a Moloch, king mob is a Moloch, the guillotine was the Moloch of the French Revolution, etc. The allusion is to the god of the Ammonites, to whom children were “made to pass through the fire” in sacrifice. Milton says he was “worshipped in Rabba, in Argob, and Basan, to the stream of utmost Arnon.” (Paradise Lost, book i. 392-398.)

In the Old Testament of the Bible, the supreme deity of Semitic heathenism whom the men of Judah once appeased by the sacrifice of their dearest possession, their own children. Hence, any evil and vicious doctrine which requires the sacrifice of human lives.

god of the Ammonites and Phoenicians to whom parents sacrificed their children