In the New Testament, one of the original Twelve Apostles chosen by the Savior during his mortal ministry. In Greek the name is Didymus (Matt. 10: 2-3; John 14: 5; 20: 24-29; 21: 2). Though Thomas doubted Jesus' resurrection until he personally saw the Savior, his strength of character made him willing to face persecution and death with his Lord (John 11: 16; 20: 19-25).