Luke 18:27

But he said, “The things which are impossible with men are possible with God.”

Then Jesus explains that what is impossible with men is possible with God. He can enable wealthy men to walk humbly before Him as Abraham did, just as He can enable a poor man like Lazarus to do so. He is able to save to the uttermost all those who come to Him through Jesus. For He is the God of the impossible. It is a reminder that but for God's all prevailing goodness not one of us would be saved. We owe any hope that we have to God.

But nevertheless it is still necessary for us to thrust aside anything that hinders us from following God fully. For He could have added that in the case of this young man the problem was that he was too bound to his possessions. He knew that unless they were removed they would ever be a burden around his neck. His heart would never really be set on God. Thus he had to choose between God and Mammon, and he had to choose decisively. That at least is spared to those who have few riches (although even those can get a grip on us).