You made yourself perfectly clear. "Rest" is not a literal term regarding the actions of God. If God literally needs to rest, or His work is finished then He is no longer needed and this speaks to a certain weakness, so clearly 'rested" relates to the process of delivering regional Teachers all over the world for the first 6,000 years of humanities social and spiritual evolution. These religions include major religions and the religions of tribes and indigenous peoples.
"Rested" has nothing to do with making physical things, such as a universe, stars and planets, animals and land masses, vegetation and humans. Rested means that the age of regional Prophets / Teachers will come to an end with the Seventh Day, the Day of God when a Teacher will begin to usher in a global religion and speak with the voice of the Father, not the Son.
I know you have a literal view of all this so there is no real point trying to explain this to you, but still, there it is and you are free to believe what you will.
