There's tremendous insecurity about so many things in the New Law (a term will upset many, no doubt) that leads many to "Judaize" Christianity to the point where one might ask, "What's the point?"
Pentecost happened. That's enough for me.
Pentecost happened. That’s enough for me.
That is right and Pentecost happened on the first day of the week instead of the seventh, probably in observance of the seventh day rest.