Formal correspondence within the Catholic Church, or from Catholics to clergy or religious figures, often concludes with respectful and pious valedictions. These closings serve to acknowledge the recipient’s position and demonstrate reverence. For example, emails to a bishop might end with “Respectfully yours in Christ,” while correspondence with a priest could conclude with “Sincerely in Christ.”
Using religiously-informed closings reinforces the spiritual connection between sender and recipient. It also aligns the communication within a tradition of respect for religious authority, and is a method to reinforce shared faith and values. Historically, such formal endings reflected deeply ingrained social hierarchies and the prominent role of the Church in daily life, though modern usage emphasizes piety and respect rather than strict social stratification.