The Westminster Shorter Catechism describes the work of the priest this way:
Question 25: How does Christ execute the office of a priest?
Answer: Christ executes 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.
In my Maundy Thursday Service, I preached from Romans 8 on Christ’s priestly sacrifice on the cross.