2 Kings 3:27

his eldest son i.e. his own eldest son, not as has been explained by some, the eldest son of the Edomite king. His thought was to offer such a sacrifice as would be most acceptable. Hence he gave what was most precious to him. And the offering was made to his own god, Chemosh (see Numbers 21:29). Among the heathen human sacrifice was not uncommon, and some have thought that from the sight of such offerings Abraham was brought to contemplate the sacrifice of Isaac as required of him to prove that he was not less devoted to Jehovah's service than the heathen people to their idolatry.

upon the wall This was no doubt done to shew to the Israelites that every means had been taken by him to secure the aid of the local divinity against his assailants. Such a sacrifice they might think could hardly fail of obtaining the help sought by it.

And there was great indignation[R.V. wrath] against Israel The word rendered -wrath" or -indignation" is nearly always used of the wrath of God against offenders. But it appears difficult to take it in that sense here. God's promise through Elisha was that Israel should conquer, and they were bidden to smite every fenced city and every choice city. Therefore unless we conceive that underlying God's message there was conceived some point beyond which they were not to go, and that the forcing of the king to offer his son was of this character, it is hard to see how they could be held to blame and worthy of God's wrath. They were in no position to know what the king intended, nor, when they saw him on the wall, to prevent his sacrifice. It seems better therefore to take -wrath" in this place to signify -wrath of men". The word is found in Ecclesiastes 5:17, -All his days he eateth in darkness, and is sore vexed and hath sickness and wrath" (R.V.). This can be either of what the man feels himself, or of what others feel towards him. Taking the latter sense, the meaning here would be that in the minds of the men of Judah and Edom there rose indignation that they had been brought to partake in an expedition which led to such a dreadful sacrifice. If we apply the word to the feelings of the Israelites themselves, we get the sense that they were grieved and angry at so terrible a result, and so hastened to leave the dreadful scene. The margin of R.V., -There came great wrath upon Israel", alludes to the anger of God, but it seems, as the preposition is -against", to be better to understand that the allies were grieved at having shared in so disastrous a warfare. Josephus says the kings pitied the need which the Moabite monarch had felt when he offered up his child, and so withdrew.

and they departed from him i.e. from the king of Moab. This seems to shew that it was the horrible act of the king which made them ready to be gone at once. It was not the land which they left. Had no such sacrifice as is here described taken place they would have prosecuted the siege according to the prophet's word. But now they withdrew in horror.