25 And he said, O foolish men! how slow you are to give belief to what the prophets have said.
Luke 24:25 Cross References - BBE
Mark 7:18
18 And he said to them, Have even you so little wisdom? Do you not see that whatever goes into a man from outside is not able to make him unclean,
Mark 8:17-18
Mark 9:19
19 And he said to them in answer, O generation without faith, how long will I have to be with you? how long will I put up with you? let him come to me.
Mark 16:14
14 And later he was seen by the eleven themselves while they were taking food; and he said sharp words to them because they had no faith and their hearts were hard, and because they had no belief in those who had seen him after he had come back from the dead.
Hebrews 5:11-12
11 Of whom we have much to say which it is hard to make clear, because you are slow of hearing.
12 And though by this time it would be right for you to be teachers, you still have need of someone to give you teaching about the first simple rules of God's revelation; you have become like babies who have need of milk, and not of solid food.