25 And he said to them, O foolish men, and slow of heart to believe in all that the prophets spoke.
Luke 24:25 Cross References - ACV
Mark 7:18
18 And he says to them, Are also ye so without understanding? Do ye not perceive that everything outside that enters into the man cannot defile him,
Mark 8:17-18
Mark 9:19
19 And having answered him, he says, O faithless generation, how long will I be with you? How long will I endure you? Bring him to me.
Mark 16:14
14 Afterward he became visible to them, to the eleven, who were relaxing. And he upbraided their unbelief and hard heart, because they did not believe those who saw him after he was raised.
Hebrews 5:11-12
11 About whom, much subject matter from us is also difficult to explain, since ye have become sluggish in hearing.
12 For also men who ought to be teachers because of the time, ye have need again for some man to teach you the rudiments of the beginning of the oracles of God, and have become men who have need of milk, and not of solid food.