en_tn/2ki/03/27.md

offered him as a burnt offering

King Mesha burned his son with fire until he died. He did this as an offering to Chemosh, the false god of Moab. The full meaning of this statement can be made explicit. (See: rc://en/ta/man/jit/figs-explicit)

So there was great anger against Israel

Here the word "anger" can be expressed as a verb. There are two possibilities for who is angry here: 1) The Moabite soldiers. Alternate translation: "So the Moabite soldiers were very angry with Israel" or 2) God. Alternate translation: "So God was very angry with Israel" (See: rc://en/ta/man/jit/figs-abstractnouns)