God is establishing His King and Kingdom - Jesus is that King.
1. It is not about us. 'What can I do?' This man had built up his own kingdom with himself as king. Who will this man choose as King. Jesus must be our only King. Entrance is only possible God's way.
2. Following Jesus as King. The example of the children-they bring nothing to bargain with. The blind man likewise just came asking for mercy.
3. If we follow Jesus - (a) Celebrate God's great mercy. (b) The disciples thought some were not worthy - Jesus welcomes all.