I have a very good friend who is a "bible christian" and doesn't believe in "denominations" as everyone interprets the bible differently. She doesn't go to any church on Sunday and said she raised her now grown sons that way. Her reasoning is she didn't want them to "dislike" Sundays and have them think it was a chore to go to church - preferring a "family day". She is somewhat anti-catholic. What do I say is the biblical reason for me (and all church goers!) for attending Holy Mass (worshiping) every Sunday?