Not to God it isn't. "If you Love Me keep my Commandments", remember? If we honor God we will keep His Commandments, otherwise we are honoring someone else. Someone who leads us astray. They say one day is as good as another. What difference does it make? Well it matters to God and He's the one we should be listening to instead of these false leaders. He said "…8Remember the Sabbath day by keeping it holy. 9Six days you shall labor and do all your work, 10but the seventh day is a Sabbath to the LORD your God, on which you must not do any work—"
Funny that this is the ONE Commandment that starts with the word "REMEMBER" as if people would forget or think it was of no importance. It's in the Bible.
Jesus “worked” on the Sabbath.
Yes it does, and Jesus opened up the full meaning of it when'd He proclaimed , "He IS the Lord of the Sabbath”.
In Him is our rest, so we look to Jesus. I can worship through Him, not through a day, not through a Month of the year, not through a season of the year, not through the sun, not through a new Moon, nor a Full Moon. Through Jesus, and only Jesus is how I reach the father, and I can do that at any hour or any day.