Contradiction with Exodus 20:25
This verse commands not to build an altar of hewn stone, whereas 1 Kings 18:32 describes Elijah using twelve stones to build an altar.
Exodus 20:25: And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it. [build...: Heb. build them with hewing]
Contradiction with Deuteronomy 12:13-14
These verses instruct not to offer sacrifices in any place other than the chosen place of worship, but 1 Kings 18:32 depicts building an altar on Mount Carmel.
Deuteronomy 12:13-14: Take heed to thyself that thou offer not thy burnt offerings in every place that thou seest:
Contradiction with Exodus 27:1-2
Specifies building an altar of acacia wood, whereas 1 Kings 18:32 mentions using stones.
Exodus 27:1-2: And thou shalt make an altar [of] shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof [shall be] three cubits.
Contradiction with 2 Kings 18:4
Hezekiah destroys high places and altars, contrary to the building of an altar in 1 Kings 18:32.
2 Kings 18:4: He removed the high places, and brake the images, and cut down the groves, and brake in pieces the brasen serpent that Moses had made: for unto those days the children of Israel did burn incense to it: and he called it Nehushtan. [images: Heb. statues] [Nehushtan: that is, A piece of brass]
Contradiction with Jeremiah 7:31
Highlights that building altars outside of God's command is idolatrous, while 1 Kings 18:32 involves constructing an altar on Mount Carmel.
Jeremiah 7:31: And they have built the high places of Tophet, which [is] in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded [them] not, neither came it into my heart. [came...: Heb. came it upon my heart]