Psalms 106:7

106:7 Our ancestors in Egypt failed to appreciate your miraculous deeds,

they failed to remember your many acts of loyal love,

and they rebelled at the sea, by the Red Sea.

Mark 9:32

9:32 But they did not understand this statement and were afraid to ask him.

Luke 9:45

9:45 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.

Luke 18:34

18:34 But the twelve understood none of these things. This saying was hidden from them, and they did not grasp what Jesus meant.