Q: I work at a Catholic senior living institution. Someone here prefers to listen to a TV Mass and comes to our Mass around time for Offertory. How late may a person come to Mass and still receive Communion?
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A: People are expected to be at the complete Mass from beginning to end, not to enter in the middle. Many, many Catholics arrive late, receive communion, and leave early. But the liturgy makes no provision for that practice. The person in charge of pastoral care may instruct the person watching the TV Mass about proper participation. You need not deny such a person communion, but someone should give them proper spiritual guidance.