John Chrysostom
Peter said the words, "where are You going?" at the prompting of great love, but Thomas spoke from fear.
"Lord, we do not know where You are going." We do not know the place, he says, and how can we know the way that leads there?
And see with what timidity he speaks. He did not say, "show us that place," but, "we do not know where You are going."
All had long wished to know this. Indeed, if the Jews, hearing these words, were perplexed, though they wished to be rid of Christ, how much more did those wish to learn who never wanted to be separated from Him?
Therefore, although they were afraid to ask Him, they nevertheless ask, compelled by great love and anxiety.