“‘I will put My Spirit upon Him’” (Matthew 12:18).
The prophet promised that God would put His Holy Spirit upon Messiah in a special way, and the Spirit did descend on Jesus at His baptism (Matt. 3:16). But that was not when the Spirit first indwelt Him, because the Holy Spirit conceived Him (Matt. 1:20).
Yet, if Jesus was the preexistent Son, eternally a member of the Godhead, why would the Spirit need to come upon Him during His incarnation? First, the Spirit needed to empower Jesus’ human nature. Our Lord was fully human, even to the extent of being tempted, yet He did not sin (Heb. 4:15). When He was a child, He grew and matured in favor with God and humanity (Luke 2:52). As an adult, He experienced the full range of human feelings and emotions. Therefore as a human being He needed the indwelling power of the Spirit (Acts 10:38) so He could function in concert with His deity.
Second, the Spirit commissioned Jesus in order to attest to His messianic service. Early in His ministry, Jesus applied Isaiah’s prophecy to Himself: “The Spirit of the Lord is upon Me, because He anointed Me to preach the gospel to the poor. He has sent Me to proclaim release to the captives, and recovery of sight to the blind, to set free those who are oppressed, to proclaim the favorable year of the Lord” (Luke 4:18–19). This passage was not only fulfilled for Jesus’ audience but for us as well—we can know He ministered fully empowered by the Holy Spirit.
When was the last time you saw love or wisdom or some other valuable trait come forth from your life, and you knew it had to be the Spirit of Christ at work in you? Respond to such instances with true praise, and with a desire for more and more of His nature to be implanted in you.
From Daily Readings from the Life of Christ, Vol. 1, John MacArthur. Copyright © 2008.