Boyd’s Bible Dictionary:
(destroyer). The king of Moab who hired Balaam to curse Israel (Num. 22-24; Josh. 24:9; Judg. 11:25). Balac (Rev. 2:14).
Concise Bible Dictionary:
King of Moab, son of Zippor, who sought to resist Israel in advancing to the promised land, and hired Balaam to curse them; he was taught by that false prophet to seduce Israel to idolatry by means of fornication with their women (Num. 22-24; Josh. 24:9; Judg. 11:25; Mic. 6:5).
Jackson’s Dictionary of Scripture Proper Names:
waster