Belial (also Belhor, Baalial, Beliar, Beliall, Beliel; from Hebrew בְּלִיַּ֫עַלBəliyyáʻal; also named Matanbuchus, Mechembuchus, Meterbuchus in older scripts) is an evil being in Jewish apocrypha, and also a term used to characterise the wicked or worthless.
The etymology of the word is uncertain but is most commonly translated as "without worth". Some scholars translate it from Hebrew as "worthless" (Beli yo'il), while others translate it as "yokeless" (Beli ol), "may have no rising" (Belial) or "never to rise" (Beli ya'al). Only a few etymologists have assumed it to be a proper name from the start. In the Book of Jubilees, uncircumcised heathens are called "sons of Belial".
In the Goetia, Belial is said to be very respectful. Belial is also the demon of lust. As a Prince of Hell, he commands 50 Legions of Demons and is specifically the Prince reigning over the Northern Reaches of Hell. He controls the element of earth and reigns over the Earth Elementals (earth demons.) The other princes of Hell include: Gaap, Asmoday, and Vassago.