A priest (e.g., in Roman Catholicism) tends to be an intermediary between God and humans. Hence confession of sins to a priest; Mass by a priest; Exreme Unction by a Priest etc.\n\nA Pastor (e.g., in Protestantism) is more of a shepherd, or a leader, who leads and guides the people in their search for God.\n\nCordially,\nJohn\nhttp://www.GodSci.org