Known as Doubting Thomas for his initial skepticism concerning the resurrection.
Named as one of the 12 apostles:
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,
Luke 6:15 Matthew and Thomas, James the son of Alphaeus, and Simon called Zelotes,
Goes to tomb of Lazarus:
John 11:16 Then said Thomas, which is called Didymus, unto his fellowdisciples, Let us also go, that we may die with him.
Questions the Lord Jesus :
John 14:5 Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way?
The risen Lord appears to His apostles, save Thomas:
John 20:24 But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.
Thomas has a unique experience:
John 20:26-29 And after eight days again his disciples were within, and Thomas with them: then came Jesus, the doors being shut, and stood in the midst, and said, Peace be unto you. Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing. And Thomas answered and said unto him, My LORD and my God. Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.
At the sea of Tiberias, the risen Lord appeared to them:
John 21:2 There were together Simon Peter, and Thomas called Didymus, and Nathanael of Cana in Galilee, and the sons of Zebedee, and two other of his disciples.
Last mentioned, after the ascension of the Lord, in the upper room:
Acts 1:13 And when they were come in, they went up into an upper room, where abode both Peter, and James, and John, and Andrew, Philip, and Thomas, Bartholomew, and Matthew, James the son of Alphaeus, and Simon Zelotes, and Judas the brother of James.