The title of the Babylonian god Marduk. The title was used disrespectfully by Isaiah (Isaiah 46:1). Jeremiah speaks about Bel in Jeremiah 50:2 and 51:44, and Bel is the idol in the non-biblical story Bel and the Dragon.
Bel
From Tyndale Bible Dictionary, adapted by Mission Mutual. CC BY-SA 4.0.