This psalm is pure gospel; it is only, and wholly, concerning Christ, the Messiah promised to the fathers and expected by them. It is plain that the Jews of old, even the worst of them, so understood it, however the modern Jews have endeavoured to pervert it and to rob us of it; for when the Lord Jesus proposed a question to the Pharisees upon the first words of this psalm, where he takes it for granted that David, in spirit, calls Christ his Lord though he was his Son, they chose rather to say nothing, and to own themselves gravelled, than to make it a question whether David does indeed speak of the Messiah or no; for they freely yield so plain a truth, though they foresee it will turn to their own disgrace, Matt. 22:41-46 Of him therefore, no doubt, the prophet here speaks of him and of no other man. Christ, as our Redeemer, executes the office of a prophet, of a priest, and of a king, with reference both to his humiliation and his exaltation; and of each of these we have here an account. I. His prophetical office, Ps. 110:2. II. His priestly office, Ps. 110:4. III. His kingly office, Ps. 110:1, 3, 5, 6. IV. His estates of humiliation and exaltation, Ps. 110:7. In singing this psalm we must act faith upon Christ, submit ourselves entirely to him, to his grace and government, and triumph in him as our prophet, priest, and king, by whom we hope to be ruled, and taught, and saved, for ever, and as the prophet, priest, and king, of the whole church, who shall reign till he has put down all opposing rule, principality, and power, and delivered up the kingdom to God the Father.