House of nothingness; i.e., “of idols”, a place in the mountains of Benjamin, east of Bethel (Josh. 7:2; 18:12; 1 Sam. 13:5). In Hos. 4:15; 5:8; 10:5 it stands for “Bethel” (q.v.), and it is so called because it was no longer the “house of God,” but “the house of idols,” referring to the calves there worshipped.
Easton’s Bible Dictionary
Beth-aven
Name meaningthe house of vanity; of iniquity of trouble
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.