en_tn/1ki/21/25.md

who sold himself to do what was evil

A person being committed to doing what is evil is spoken of as if that person had sold himself to evil. See how you translated this idea in 1 Kings 21:20. Alternate translation: "who dedicated himself to doing what was evil" (See: rc://en/ta/man/translate/figs-metaphor)

what was evil in the sight of Yahweh

The phrase, "in the sight of" refers to someone's opinion. See how you translated this in 1 Kings 11:6. Alternate translation: "what Yahweh considers to be evil" (See: rc://en/ta/man/translate/figs-metaphor)