Names and Identity
Thomas is identified in the Gospels by the additional name Didymus, a Greek term meaning 'twin'; his Aramaic name carries the same sense. Among the Eastern Orthodox and Syriac churches he is held in particular honor for his missionary labors associated with Syria and Persia, and the Christian community of India that traces its origins to him is known as the St. Thomas Christians.
The Orthodox tradition reads his hesitation before the Resurrection not as mere doubt but as the occasion of a firm confession; the OrthodoxWiki account notes that icons of the event are properly inscribed 'The Belief of Thomas' rather than 'Doubting Thomas.'