John 20:24
"But Thomas, one of the twelve, called Didymus, was not with them when Jesus came."
Cross References (ranked by relevance)
John 11:16
Then said Thomas, which is called Didymus, unto his fellowdisciples, Let us also go, that we may die with him.
Hebrews 10:25
Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.
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.
John 14:5
Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way?