John 16:18
They kept saying, "What is this "in a little while' that he keeps talking about? We don't know what he means."
Matthew 16:9-11
Don't you understand yet? Don't you remember the five loaves for the 5,000 and how many baskets you collected,
Luke 24:25
Then Jesus told them, "O, how foolish you are! How slow you are to believe everything the prophets said!
Hebrews 5:12
In fact, though by now you should be teachers, you still need someone to teach you the basic truths of God's word. You have become people who need milk instead of solid food.