The Redeemer's Offices

Q. 23. What offices doth Christ execute as our Redeemer?
A. Christ, as our Redeemer, executeth the offices of a prophet, of a priest, and of a king, both in his estate of humiliation and exaltation.
Q. 24. How doth Christ execute the office of a prophet?
A. Christ executeth the office of a prophet, in revealing to us, by his Word and Spirit, the will of God for our salvation.
Q. 25. How doth Christ execute the office of a priest?
A. Christ executeth the office of a priest, in his once offering up of himself a sacrifice to satisfy divine justice, and reconcile us to God, and in making continual intercession for us.
Q. 26. How doth Christ execute the office of a king?
A. Christ executeth the office of a king, in subduing us to himself, in ruling and defending us, and in restraining and conquering all his and our enemies.

-Westminster Shorter Catechism