son of Saba, the surname (1) of Joseph, also called Justus ( Acts 1:23 ), some identify him with Barnabas; (2) of Judas, who was a "prophet." Nothing more is known of him than what is mentioned in Acts 15:32 .

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.