As One Who Serves: Reflections on the Pastoral Ministry of Priests in the United States is a publication from the United States Catholic Conference that explores the role and responsibilities of priests in their pastoral ministry. It delves into the various aspects of their work, including teaching, sanctifying, and governing the faithful, emphasizing the priest's role as a shepherd and their participation in Christ's mission. The document also addresses the challenges and joys of priestly life, the importance of unity and collaboration within the Church, and the need for ongoing support and formation for priests.