33 Now in the synagogue there was a man who had a spirit of an unclean demon. And he cried out with a loud voice, 34 saying, “Let us alone! What have we to do with You, Jesus of Nazareth? Did You come to destroy us? I know who You are—the Holy One of God!” 35 But Jesus rebuked him, saying, “Be quiet, and come out of him!” And when the demon had thrown him in their midst, it came out of him and did not hurt him. (Luke 4:33–35, NKJV)
Why did Jesus rebuke and silence demons when casting them out? After all, this one and others declared the truth that Jesus is “the Holy One of God,” the Messiah (Lk. 4:34, 41). The answer is one of contrasting the sources of truth and the authority of Christ. As Jesus was teaching in the Galilean synagogues, He showed Himself to be the fulfillment of Messianic prophecy (Lk. 4:16-21, 31-32, 42-44). The Messiah, not demons, would “preach the gospel” and “set at liberty those who are oppressed” by sin (Lk. 4:18, 35, 41). Christ gave miraculous evidence of His authority to save souls from sin’s power when He miraculously freed people from demonic possession, (Lk. 4:32, 35-36). Jesus applied His authority as the source of truth when He silenced demons from declaring Him to be the Christ, the Son of God. Christ, not demons, would proclaim “the acceptable year of the Lord” (Lk. 4:19). Therefore, we must listen to Christ as the final authority for salvation and service to Him (Matt. 28:18-20; Heb. 1:2).