Mark 8:19
When I brake the five loaves among five thousand, how many baskets full of fragments took ye up? They say unto him, Twelve. When I brake the five loaves among five thousand, how many baskets full of fragments took ye up? They say unto him, Twelve.
The question looks back to the feeding of five thousand with five loaves, after which twelve baskets full of fragments were taken up. It was addressed to disciples who did not understand the teaching about poverty, humiliation, rejection, and death at Jerusalem. It was also addressed to their failure to comprehend the teaching about coming in glory, not with an earthly throne but with the glory of God and the hosts of heaven to reward every man according to his works, with the promise that some standing there would not taste of death till they see the Son of man coming in His kingdom.
Glory seemed far away to them, for their eyes were fixed on the nearer earthly life of poverty, humiliation, and suffering. Sadness oppressed their hearts because they loved Him, and doubt harassed their minds because it seemed incomprehensible that the Son of God should be subjected to cruel humiliation. They questioned why He should voluntarily go to Jerusalem to meet such treatment and leave them in greater darkness than before He revealed Himself to them. The remembered miracle showed that abundant provision could come from a small supply. Even after that provision, the disciples still failed to trust that power when another hungry crowd needed food.