In Deuteronomy 15:9 and in Nahum 1:11 the word “Belial” is rendered in our translation by the adjective “wicked.” The word means “worthlessness.”
(from Barnes’ Notes)
Related Commentaries of Deuteronomy 13:13
Deuteronomy 13:13
13 Certain men, the childrenc of Belial, are gone out from among you, and have withdrawn the inhabitants of their city, saying, Let us go and serve other gods, which ye have not known;