The Spirit of adoption given by God gives the believer a relationship with God made of security and peace. The Holy Spirit reveals Jesus Christ, the only path to God.
John the Baptist, the forerunner is preparing the way of the Lord. But in prison, he doubts : are you the Messiah? The miracles of Jesus fulfilled the prophecies of Isaiah. He is the messenger of God , who came as a child.
Not a great man, a great thinker but the Son of God himself .