Counsellor

an adviser (Prov. 11:14; 15:22), a king's state counsellor (2 Sam. 15:12). Used once of the Messiah (Isa. 9:6). In Mark 15:43, Luke 23:50, the word probably means a member of the Jewish Sanhedrim.

Source: Easton’s Bible Dictionary (M.G. Easton, 1897, public domain).