They couldn't get in because the house was full of Pharisees and teachers of the law who were listening to Jesus teach. And the Scripture says "the power of the Lord was present for him to heal the sick" (Luke 5:17). Were none of the pharisees or the law professors in need of healing? His reputation preceded him. They knew Jesus healed people.
While the Pharisees and the professors doubted, the roofers believed. The paralyzed man believed. Jesus saw their belief and healed. The man got up rejoicing. "Everyone was amazed and gave praise to God" (5:26). I bet the roofers put the roof back together before they left.
For Reflection: Am I listening to the teaching of Jesus but not believing in his power? Am I desperate enough to get to Jesus that I'll tear off a roof? What has come between me and Jesus?
Let us pray. Jesus, I'm hungry for your touch, your love, your healing. I don't want anything to stand between us. I need you desperately.