Absolutely! There was NO sin before the fall of mankind! Mankind was in harmony with ALL of God's Laws written on their hearts. It was natural for them to obey God until Adam and Eve disobeyed God to eat of the tree of the knowledge of Good and Evil. At creation before the fall Adam and Eve would of kept God's 7th Day Sabbath because that Sabbath was made for mankind as part of the FINISHED week of creation (Mark 2:17).
Your texts are in Gen 2:1-3 and Mark 2:17 already highlighted.
The Shadows Sabbaths are shown in God's Word in posts 1157, 1160, 1166, 1168 and 1183 which you have ignored.
Let's look at Gen 2:2 again...
"And on the seventh day God ended his work which he had made; and he "rested" on the seventh day from all his work which he had made." (Gen 2:2)
"RESTED" H7673
שׁבת
shâbath
shaw-bath'
A primitive root; to repose, that is, desist from exertion; used in many implied relations (causatively, figuratively or specifically): - (cause to, let, make to) cease, celebrate, cause (make) to fail, keep sabbath, suffer to be lacking, leave, put away (down), (make to) rest, rid, still, take away. This is the origin of the root word Sabbath H7676 used in Ex 20:8-11
The is a Holy day God had made, God had blessed and set aside from all the other days of the week for Mankind at the end of the creation week (Gen 2:1-3)
The 7th Day of the creation week was made for mankind so it is God that instructs is to keep it. This is part of the FINISHED work of the creation week.
Tell me all the above is not true?
God bless you