The subject of this verse is Jesus Christ, Who would be on the throne as the Son of David. It deals with certain things that speak of the depth of His fullness. “The Spirit of the Lord shall rest upon Him” (verse 2a). This does not mean an occasional rest, but one that is glorious and everlasting.
The Lord Jesus Christ is the fullness of the Godhead. He was the glory of God manifested in incarnate humanity. He is the resting place of all humanity! He is also the spirit of wisdom and perception.
Jesus represented counsel and power, by which He implemented His perfect wisdom. He knew the best thing for every situation.
Many times, we know what to do, but we do not have the might to carry it out. The only way we can achieve this is through reliance on the Holy Spirit who operates through us and makes Jesus Christ unto us “wisdom, and righteousness, and sanctification and redemption” (I Corinthians 1:30b