***I guessed you missed the Creation account of God having set aside the Seventh day and called it very good.***
God’s work was finished and he rested. But then what did God do on the 8th day, 9th day, 10th day? Start over?
The main difference is you may honor the 7the day and accuse others of honoring Sunday. WE do not honor SUNDAY. We honor the Lord Jesus Christ every day and just happen to gather together on Sunday as that is the day Christ overcame death and was resurected.
The first gathering of the Saints was on Resurection Sunday. The Holy Spirit came into the believers on Pentecost which was on Sunday.
Do you start your work over every Monday or do you continue from where you left off, when you chose to end your workweek?
What I do know is that there was no command to honor Christ’s death and resurrection in terms of a day, but there is a command to keep the Seventh day holy.