'Grasp' in the Bible

But they did not understand this statement; its meaning had been concealed from them, so that they could not grasp it. Yet they were afraid to ask him about this statement.

But the twelve understood none of these things. This saying was hidden from them, and they did not grasp what Jesus meant.

Therefore, dear friends, since you have been forewarned, be on your guard that you do not get led astray by the error of these unprincipled men and fall from your firm grasp on the truth.

"To the angel of the church in Ephesus, write the following: "This is the solemn pronouncement of the one who has a firm grasp on the seven stars in his right hand -- the one who walks among the seven golden lampstands: