Bible Dictionary
Thaddeus
Thaddeus was another form of the name Thaddaeus, one of the twelve apostles and generally identified with Judas, or Jude, son or brother of James.
Definition
Thaddeus is another form of Thaddaeus, the name of one of the Twelve Apostles. He is generally identified with Judas or Jude, also called Lebbaeus and Judas of James.
Biblical Usage
The apostolic lists in Matthew and Mark name Thaddeus, while Luke and Acts name Judas of James. These names are understood in the supplied material to refer to the same apostle.
Scripture References
Related Figures
Historical Bible Dictionaries
Smith's Bible Dictionary
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]