One of the twelve. The name means a twin, and so it is translated in John 11: 16 by the Greek Didymus. He is mentioned in the lists of apostles (Matt. 10: 3; Mark 3: 18; Luke 6: 15; Acts 1: 13); and also in John 11: 16; John 14: 5; John 20: 24, 28; John 21: 2.