Luke 18:34

Καὶ αὐτοὶ οὐδὲν τούτων συνῆκαν, καὶ ἦν τὸ ῥῆμα τοῦτο κεκρυμμένον ἀπ᾽ αὐτῶν, καὶ οὐκ ἐγίνωσκον τὰ λεγόμενα.

RBT Translation:

And they, themselves understood nothing of these things. And the Saying, this one, was that which has been concealed away from themselves, and they were not recognizing the things that are being said.

Julia Smith Literal 1876 Translation:
And they understood nothing of these things: and this word was hidden from them, and they discerned not the things spoken.

LITV Translation:
And they did not understand these things, nothing! And this saying had been hidden from them, and they did not know the things being said.