Keep the sabbath day holy one of the ten commandments, hence not spending money. Sundays are set apart for church and other activities that pertain to God. The way i look at it is if we went shopping on a Sunday we are making it so people have to work....

Can you show me from the Bible where the Sabbath was changed from the 7th day of the week to the 1st?  Christ observed the Sabbath of Creation, that was also specified in the Ten Commandments.  This Sabbath day is from sundown to sundown on the 7th day of the week.

I know why mainstream Christianity observes the Lord's Day on Sunday and I know a lot of the history on the change, but they generally argue that the Ten Commandments are no longer binding.

Is this belief from the Book of Mormon or the Bible?