Medieval rabbinic midrash (for example Tanḥuma) and commentators such as Rashi describe a calf-faced idol with outstretched hands over fire.
The Valley of Hinnom is referred to in the Hebrew Bible, where it's associated with child sacrifice and idol worship (e.g., 2 Chronicles 28:3, 33:6; Jeremiah 7:31-32).
According to legend, these giants disappeared after the arrival of Christianity, throwing their idols into the sea.
But when Manasseh brought the idol into the Temple, the Shekhinah departed from it and the fruit withered, as is said: And the flower of Lebanon languisheth (Nah.
As David leaped and danced before the ark of the Lord, so did the Mexican monarchs before their idols.