25 "O dull-witted men," He replied, "with minds so slow to believe all that the Prophets have spoken!
Luke 24:25 Cross References - WNT
Mark 7:18
18 "Have *you* also so little understanding?" He replied; "do you not understand that anything whatever that enters a man from outside cannot make him unclean,
Mark 8:17-18
Mark 9:19
19 "O unbelieving generation!" replied Jesus; "how long must I be with you? how long must I have patience with you? Bring the boy to me."
Mark 16:14
14 Later still He showed Himself to the Eleven themselves whilst they were at table, and He upbraided them with their unbelief and obstinacy in not having believed those who had seen Him alive.
Hebrews 5:11-12
11 Concerning Him we have much to say, and much that it would be difficult to make clear to you, since you have become so dull of apprehension.
12 For although, considering the long time you have been believers, you ought now to be teachers of others, you really need some one to teach you over again the very rudiments of the truths of God, and you have come to require milk instead of solid food.