Sabbath Question.

I know that keeping the sabbath is a huge deal for some while for others, going to service on Sunday is a big deal. I do not think God needed rest. Let me explain before I get nailed to the wall by everyone..... God knew the human body would require rest. The 7th day was an example for us to follow. I dont see God saying " phew that creation thing was tough!, I need a breather" The 10 commandments did not go away. In Isaiah 66, we are told that their will be sabbaths in heaven. I do not see God instituting the sabbath Jesus abolishing it and it being brought back for heaven...thay makes zero sense. The law of sacrifice was done away with, not God's laws (10 commandments) Jesus said that not one jot or title (srry can't spell at times) would be removed from the law... The Catholics changed it...and man accepted it ignoring the 4th commandment. NOWHERE does it say in the bible to keep Sunday holy. ((But the church met on the first day of the week!)) Great! I'm sure they had a great time, as they probably met to worship God daily! However, im 100% sure that they did not ignore the sabbath and im not going to create an entire denomination of practice based off an instance. God commanded the sabbath be kept holy. Jesus followed it, the apostles followed it, and their WILL be sabbath in heaven..... oh the catholic church admits it's their mark of authority to have changed it while also admitting that Saturday is the sabbath. Honor the Sabbath 1st and foremost...(commandment) (day of rest). Btw a side note, the term Lords Day was coined for a sun God. Sunday was for Sol Vidcus and Christians (catholics) adopted their practices into the church....ok, let's all be respectful and let the responses begin :)