Answer: Jesus had the power to heal every disease and sickness among the people. He healed people who were ill with various diseases, those suffering severe pain, those possessed by demons, those suffering from seizures, those who were paralyzed, etc., (verses 23 and 24).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
Matthew 9:35-36: "Jesus went through all the towns and villages, teaching in their synagogues, preaching the Good News of the kingdom and healing every disease and sickness. When He saw the crowds, He had compassion on them, because they were harassed and helpless, like sheep without a shepherd."
Luke 6:19: "and the people all tried to touch Him [Jesus], because power was coming from Him and healing them all."
Luke 9:10-11: "When the apostles returned, they reported to Jesus what they had done. Then He took them with Him and they withdrew by themselves to a town called Bethsaida, but the crowds learned about it and followed Him. He welcomed them and spoke to them about the kingdom of God, and healed those who needed healing."
Acts 10:37-38: "You know what has happened throughout Judea, beginning in Galilee after the baptism that John preached--how God anointed Jesus of Nazareth with the Holy Spirit and power, and how He went around doing good and healing all who were under the power of the devil, because God was with Him."