Thaddeus in Smiths Bible Dictionary

one of the twelve apostles. Mt 10:3; Mr 3:18 From a comparison with the catalogue of St. Luke, Lu 6:16; Ac 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]

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