en_tn/2ch/11/14.md

pasturelands

lands used for animals

Jeroboam and his sons had driven them away

To "drive away" is an idiom that means to forcefully cause someone to leave. Alternate translation: "Jeroboam and his sons had forced them to leave" (See: rc://en/ta/man/jit/figs-idiom)

act as the priests of Yahweh

"do their proper work as the priests of Yahweh" or "do their duties as priests of Yahweh"