Bible Dictionaries
Thaddaeus

Fausset's Bible Dictionary

Mark 3:18. Same as Lebbaeus or Judas not Iscariot (John 14:22). (See JUDE.) The Sinaiticus and Vaticanus manuscripts read in Matthew 10:3 only "Thaddaeus, "omitting "and Lebbaeus whose surname was."

Bibliography Information
Fausset, Andrew R. Entry for 'Thaddaeus'. Fausset's Bible Dictionary. https://www.studylight.org/​dictionaries/​eng/​fbd/​t/thaddaeus.html. 1949.