Psalms 110:1 - The Popular Commentary by Paul E. Kretzmann

The Lord said unto my Lord, literally, "Declaration of Jehovah to my Lord," David here recording what he, in the spirit, heard Jehovah, the God of heaven, say to his Lord, the Messiah, Sit Thou at My right hand, emblem of the almighty power of God with which He shows forth His great miracles, especially those for the salvation of mankind, until I make Thine enemies Thy footstool. The Messiah, the Son of David, and at the same time David's Lord, born as a true man and living His life in lowliness and humility, is given apart in the divine power and rule, Himself in charge of God's government of the earth, exalted to that position according to His humanity. The climax of His kingly rule will be reached on the Last Day; for then the Lord Jehovah will crown His many victories in behalf of the Head of the Christian Church by Vanquishing even the last enemy of mankind, death, 1 Corinthians 15:25. On that day the Kingdom of Grace will become the Kingdom of Glory, and Christ will rule as the King of Glory throughout eternity.