2 Kings 16:3

he walked in the way of the kings of Israel This is more fully explained by the Chronicler, and means that he followed after all kinds of heathen idolatry, not that he introduced the worship of the calves from Israel into Judah. -He made molten images for the Baalim, and burnt incense in the valley of the son of Hinnom." -It is hard not to be infected with a contagious neighbourhood. Whoever read that the kingdom of Israel was seasoned with the vicinity of the true religion of Judah? Goodness, such as our nature is, is not so apt to spread. A tainted air doth more easily affect a sound body, than a wholesome air can clear the sick". (Bp. Hall.)

yea, and made his son to pass through the fire i.e. To Moloch. Thus introducing into Judah once more, as in Solomon's days (1 Kings 11:7) the worship of -the abomination of the children of Ammon". The words of this verse might be made to refer only to a passing through flame, as a ceremony significant of purification. But the words of the Chronicler are stronger: -he burnt his children in the fire." From which it would appear that not one son only was offered. That the children offered in such sacrifices were actually burnt is seen from 2 Kings 17:31; Ezekiel 16:21; and many other passages. But from the words of Ezekiel it may perhaps be inferred that the victims were first slain and then burnt. -Thou hast taken thy sons and thy daughters whom thou hast borne unto me and these hast thou sacrificed unto them to be devoured … thou hast slain my children and delivered them up in causing them to pass through the fire unto them."

according to the abominations of the heathen The word -abomination" is constantly employed of idols and their worship, their rites being often of the foulest character. The heathen practices of Tyre and Sidon, of the Ammonites, and of the Syrians of Damascus all now found place and worshippers in Jerusalem.