Luke 24:25
And He said to them, O ye foolish, and slow in heart to believe in all those things which the prophet spoke!
Mark 7:18
And He says to them, Are you still without understanding? Do you not know that everything external entering into a man is not able to defile him?
Mark 8:17-18
And Jesus knowing says to them, Why do you reason because you have not bread? do you not yet know, nor understand? have you your heart still hardened?
Mark 9:19
And He responding to them, says, O faithless generation, how long shall I be with you? how long shall I bear with you? Bring him hither to me.
Mark 16:14
OMITTED TEXT
Hebrews 5:11-12
Concerning whom there is much word to us, and difficult to speak, since you are dull of hearing.