Unbenedictus,
I think, since this particular Commandment is not talked about anymore it is touchy.
Exodus 20:8 “Remember the Sabbath day by keeping it holy. 9 Six days you shall labor and do all your work, 10 but the seventh day is a sabbath to the LORD your God. On it you shall not do any work, neither you, nor your son or daughter, nor your male or female servant, nor your animals, nor any foreigner residing in your towns. 11 For in six days the LORD made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the LORD blessed the Sabbath day and made it holy.
The Lord calls us to make His day holy precisely by not working (it imitates His own rest on the Seventh Day, work is for material gain, so we rest to focus on spiritual things and acknowledge that material work only takes us so far). Too often, all we hear is, “Keep the Lord’s Day holy,” and that’s it. We aren’t told how God told us to
make it holy. We think all this means is “go to Mass.” That’s part of it, but the Church is clear in the Catechism that we are to refrain from unnecessary work. Jesus did make the point that necessary work is a different matter (healing,
truly unavoidable “emergencies”, etc…). But to extract from that that Jesus was doing away with one of the Ten Commandments is silly.
No, we should not become Pharisees, but don’t lash out at poor Ubenedictus either. If you are upset with him, take a good look at yourself and see if the truth is that you are uncomfortable with your own observance of this Third Commandment.
There are many examples. I’m a dentist. If I get an emergency call from a patient on a Sunday, of course I go in, even though I will charge the patient and earn money. It’s an emergency. However, that’s an exception - not the rule. My wife and I try to do all our grocery shopping, gas re-fueling, bills paid, on and before Saturday so we don’t have to do it Sunday. There are a ton of things you can do ahead of time to “keep Sunday holy” and not turn it into “just another day” with all it’s busy-ness.
God doesn’t just want His hour at Mass. He wants the whole day for rest, prayer, family time, spiritual reading, etc.