John 20:24

Now Thomas, one of the twelve, who is called Didymus, the twin, was not with them when Jesus came.

John 11:16

Then said Thomas, (called Didymus, the twin,) to his fellow-disciples, Let us go too, that we may die with him.

Matthew 10:3

Philip, and Bartholomew; Thomas, and Matthew the tax-gatherer; James son of Alpheus, and Lebbeus, whose surname is Thaddeus;

Matthew 18:20

For where two or three are gathered together in my name, there am I in the midst of them.

John 6:66-67

From that [discourse] many of his disciples went away back, and no more followed him about.

John 14:5

Thomas saith to him, We know not whither thou art going; and how can we know the way?

John 21:2

Simon Peter, and Thomas called Didymus, the twin, and Nathaniel who was of Cana of Galilee, and the sons of Zebedee, and two others of the disciples were together.

Hebrews 10:25

not deserting the assembling of ourselves together, as is the custom with some, but exhorting to it; and so much the more, as ye see the day approaching.

Treasury of Scripture Knowledge

Summary

But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.

Bible References

Was

John 6:66
From that [discourse] many of his disciples went away back, and no more followed him about.
Matthew 18:20
For where two or three are gathered together in my name, there am I in the midst of them.
Hebrews 10:25
not deserting the assembling of ourselves together, as is the custom with some, but exhorting to it; and so much the more, as ye see the day approaching.