In the Gospels the identity of the Messiah is hid, for a long period. Whereas the demons often reveal His identity, and then immediately they are silenced by Him. The demons know that Jesus is supernatural, while they perceive not a anthropometrical Jesus, but the Sanctified One, filled with the Holy Spirit. This supernatural knowledge also was found in Jesus (Luke 22:31-32a).
According to the Gospels Jesus is the truth while Satan is the father of all lies. (BT) This contradiction is also found in the Qumran scrolls. There are good people that follow the Prince of light and workers of wickedness that are ruled by the Angel of Darkness. (1 QS 3:18-21) Salvation is at the heart of Jesus work, and this includes not only sin or sickness,