New Revised Standard Version
Thomas said to him, “Lord, we do not know where you are going. How can we know the way?”

Contemporary English Version
Thomas said, "Lord, we don't even know where you are going! How can we know the way?"

New American Bible
Thomas said to him, “Master, we do not know where you are going; how can we know the way?”

Douay-Rheims Bible
Thomas saith to him: Lord, we know not whither thou goest. And how can we know the way?

Thomas saith to him: Lord, we know not whither thou goest. And how can we know the way?

Thomas.

John 20:25-28 The other disciples therefore said to him: We have seen the Lord. But he said to them: Except I shall see in his hands the print of the nails and put my finger into the place of the nails and put my hand into his side, I will not believe. . . .

we know not.

John 15:12 This is my commandment, that you love one another, as I have loved you.

Mark 8:17,18 Which Jesus knowing, saith to them: Why do you reason, because you have no bread? Do you not yet know nor understand? Have you still your heart blinded? . . .

Mark 9:19 Who answering them, said: O incredulous generation, how long shall I be with you? How long shall I suffer you? Bring him unto me.

Luke 24:25 Then he said to them: O foolish and slow of heart to believe in all things, Which the prophets have spoken.

Hebrews 5:11,12 Of whom we have much to say and hard to be intelligibly uttered: because you are become weak to hear. . . .