Q&A Is it a requirement of all priests to say Mass daily, whether in private or in assembly, on vacation, or their days off? Fr. Vincent Serpa O.P. • Download Share Question: Is it a requirement of all priests to say (or concelebrate) Mass daily, whether in private or in assembly, on vacation, or their days off? Answer: There is no requirement that a priest celebrate Mass every day. But one would hope he would want to. There is no greater privilege on earth. Related ‹ › Enjoying this content? Please support our mission! Donate