THE BIBLOPEDIA
Thaddeus
From the Scriptures themselves
Thaddeus is a name named in Scripture. Hitchcock's Bible Names (1869) gives the name's meaning as “that praises or confesses”. The Scriptures below are what the Bible itself says — they are the whole of this entry, gathered from the King James text.
Matthew 10:3 — Philip, and Bartholomew; Thomas, and Matthew the publican; James the son of Alphaeus, and Lebbaeus, whose surname was Thaddaeus;
Mark 3:18 — And Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the son of Alphaeus, and Thaddaeus, and Simon the Canaanite,