Acts 1:1:

The former treatise have I made, O Theophilus, of all that Jesus began both to do and teach,

See also:

Jesus the Healer Has Never Changed
Jesus, the Best Faith Teacher
The Power in the Name of Jesus
Objection: Isaiah 53:4 (Matthew 8:17) Was Fulfilled in Jesus’ Earth Ministry and Cannot Be Claimed as a Promise by Christians Today
Objection: Jesus Healed and Did Miracles to Authenticate His Messiahship
Objection: Jesus Did No More Healing Miracles After He Rose from the Dead
Objection: We Cannot Expect to Heal as Jesus Did Because We Are Not the Son of God