Assuming Jezebel from Sidon influenced Ahab’s worship of Baal,11 Kings 16:31-33 Ahab’s method could have followed this 4th Century BC2about 400 years after Elijah description of Sidonian child sacrifice.
There stands in their midst a bronze statue of Kronos, its hands extended over a bronze brazier, the flames of which engulf the child. When the flames fall upon the body, the limbs contract and the open mouth seems almost to be laughing until the contracted body slips quietly into the brazier. Thus it is that the ‘grin’ is known as ‘sardonic laughter,’ since they die laughing. 3From Scholia to Plato’s Republic, I, 337A (ed. Bekker, vol. 9, p.68), translated from the Greek by Paul G. Mosca
In the 12th Century AD, the Torah commentator Rashi described a brass idol:
…they heated him from his lower parts; and his hands being stretched out, and made hot, they put the child between his hands, and it was burnt; when it vehemently cried out; but the priests beat a drum, that the father might not hear the voice of his son, and his heart might not be moved.4https://en.wikipedia.org/wiki/Moloch
The first author in the Bible who condemned child sacrifice wrote in Leviticus 18:21.5“And thou shalt not let any of thy seed pass through the fire to Molech, neither shalt thou profane the name of thy God: I am the Lord.” Authorized King James Version Many others followed.6Leviticus 20:2-5, 1 Kings 11:4-7, 1 Kings 11:33, 2 Kings 17:31, 2 Kings 23:10-13, 2 Chronicles 28:3, 2 Chronicles 33:6, Isaiah 57:5-9, Jeremiah 7:31, Jeremiah 32:35, Jeremiah 49:1-3, Ezekiel 16:21, Ezekiel 20:32, Ezekiel 23:37-39, Zephaniah 1:5, Acts 7:43