The explicit application of this Psalm to our Saviour, by Him (Mat 22:42-45) and by the apostles (Act 2:34; Co1 15:25; Heb 1:13), and their frequent reference to its language and purport (Eph 1:20-22; Phi 2:9-11; Heb 10:12-13), leave no doubt of its purely prophetic character. Not only was there nothing in the position or character, personal or official, of David or any other descendant, to justify a reference to either, but utter severance from the royal office of all priestly functions (so clearly assigned the subject of this Psalm) positively forbids such a reference. The Psalm celebrates the exaltation of Christ to the throne of an eternal and increasing kingdom, and a perpetual priesthood (Zac 6:13), involving the subjugation of His enemies and the multiplication of His subjects, and rendered infallibly certain by the word and oath of Almighty God. (Psa 110:1-7) The Lord said--literally, "A saying of the Lord," (compare Psa 36:1), a formula, used in prophetic or other solemn or express declarations. my Lord--That the Jews understood this term to denote the Messiah their traditions show, and Christ's mode of arguing on such an assumption (Mat 22:44) also proves. Sit . . . at my right hand--not only a mark of honor (Kg1 2:19), but also implied participation of power (Psa 45:9; Mar 16:19; Eph 1:20). Sit--as a king (Psa 29:10), though the position rather than posture is intimated (compare Act 7:55-56). until I make, &c.--The dominion of Christ over His enemies, as commissioned by God, and entrusted with all power (Mat 28:18) for their subjugation, will assuredly be established (Co1 15:24-28). This is neither His government as God, nor that which, as the incarnate Saviour, He exercises over His people, of whom He will ever be Head. thine enemies thy footstool--an expression taken from the custom of Eastern conquerors (compare Jos 10:24; Jdg 1:7) to signify a complete subjection.