Thaddeus
Smith’s Bible Dictionary · William Smith, F. N. Peloubet, M. A. Peloubet
one of the twelve apostles. (Matthew 10:3; Mark 3:18) From a comparison with the catalogue of St. Luke, (Luke 6:16; Acts 1:13) it seems scarcely possible to doubt that the three names, of Judas, Lebbeus and Thaddeus were borne by one and the same person. [See JUDE, OR JUDAS]
Source of the article
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
Bible Strong digital edition from CrossWire module 1.3, based on the 1884 Peloubet revision with later digital enrichments preserved