A rich detail in the study of the gospel of Mark is the testimony of the unclean spirits about Jesus.
- Mark 1:24—A man in the synagogue with an unclean spirit said, “What business do we have with each other, Jesus of Nazareth? Have you come to destroy us? I know who You are—the Holy One of God!”
- Mark 3:11—“Whenever the unclean spirits saw Him, they would fall down before Him and shout, ‘You are the Son of God!’”
- Mark 5:7—The man with the unclean spirit named Legion said, “What business do we have with each other, Jesus, Son of the Most High God? I implore You by God, do not torment me!”
In addition to these encounters, the gospel repeatedly shows Jesus’ power over the unclean spirits—He gave authority to the apostles over the unclean spirits (Mark 6:7), He healed the little girl with the unclean spirit (Mark 7:25), and He cast out the unclean “deaf and mute” spirit from the man’s son (Mark 9:25). Reading just those few accounts of Jesus’ power over them, no wonder they testified about Him! Who knows what they had seen of Him in the spirit realm that people on earth had not seen?
Consider a few observations about these believing, confessing evil spirits we read about in the gospel record.
—Their faith exceeded the faith of the apostles, disciples, and religious leaders. Jesus rebukes the absence and littleness of faith in the people who encounter Him, even those who were His closest followers. In Mark 8:28, so many were wrong about who He was. The disciples showed fear instead of faith or they missed the point on occasions where faith would have made things clear. How humbling for them that unclean spirits were crystal clear in their knowledge about Jesus.
—Their faith did not benefit them. James’ epistle drives this point home. He writes, “You believe that God is one. You do well; the demons also believe, and shudder” (2:19). These unclean spirits were working against Christ. Just knowing who Jesus was did not save them nor did it make them submissive to Him.
—Their faith is presented as a prominent proof of Jesus’ identity. The miracles, wonders, and signs performed by Jesus help the apostles and disciples ultimately figure out who Jesus is. Peter would preach this (Acts 2:22ff). John would write this (John 20:30-31). Reading about this in the Bible, countless men and women through the centuries have believed based on the record about Jesus that includes His power over the spirit world. Mark presents these encounters to establish the fact confessed by Peter: “You are the Christ” (8:29).
How does this apply to us today? First, let’s not let the world live with greater faith and understanding than we do. Second, let’s understand that merely understanding and believing the identity of Jesus will not save us. Faith must be accompanied by works. Third, may we allow the various proofs about Jesus to build and grow our faith and trust in Him, and by this yield a foundation which stands up to the fiercest storms (cf. Matt. 7:24-25). Let’s not merely say to Jesus, “I know who You are!” Let’s show Him!