What is the meaning of Luke 9:45?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

But they did not understand this statement. It was veiled from them so that they could not comprehend it, and they were afraid to ask Him about it.

Berean Standard Bible (BSB)

But they didn’t understand this saying. It was concealed from them, that they should not perceive it, and they were afraid to ask him about this saying.

World English Bible (WEB)

But{G1161} they understood not{G50}{(G5707)} this{G5124} saying{G4487}, and{G2532} it was{G2258}{(G5713)} hid{G3871}{(G5772)} from{G575} them{G846}, that{G3363} they perceived{G143}{(G5638)} it{G846} not{G3363}: and{G2532} they feared{G5399}{(G5711)} to ask{G2065}{(G5658)} him{G846} of{G4012} that{G5127} saying{G4487}.

Strong's King James

(45) But they didn't understand this spoken-word, it was hidden from them, to not perceive it and they were afraid to ask Him about this spoken-word.

The F.O.G*

[45] But they couldn't grasp this prediction, its meaning somehow hidden from them. They were afraid to ask for clarification.

The F.O.G Paraphrase

And they were not knowing this saying, and it was veiled from them, that they might not perceive it, and they were afraid to ask him about this saying.

Young's Literal Translation