The passage from Isaiah today demonstrates that the prophet looked at the Exodus not only as an event but also as a principle or model. The miracles of the Exodus are not confined to that historical event. In principle, God is always the God of the Exodus, the God who liberates us from all kinds of bondage, whether social or physical or spiritual. Thus Isaiah sees that God will liberate Israel once more from exile as He liberated it from Egypt. This liberation will affect the very land in which they are to live again. It will be experienced as the healing of the afflicted.
Jesus fulfils this prophecy of Isaiah as He continues this liberating work of God through healing the sick and forgiving sin. He removes the physical bondage of illness as well as the spiritual bondage of sin.
The faith of the paralysed man and his friends allowed them to receive Jesus' mercy in the miracle of healing. The healed man "went home praising God". The proper response to the miracle was thus praise of God. We must learn from the Gospel to respond to all the signs of God's miraculous love and mercy by such an act of praise.
Lord Jesus, heal our hearts that we may always be sensitive to the incredible gifts of God.