The stone tablets are not in Exodus 20. Where does it say the stone tablets contain this text?
What was spoken in Exodus 20 was placed on the tablets by the finger of God in Deuteronomy 9.
And the LORD delivered unto me two tables of stone written with the finger of God; and on them was written according to all the words, which the LORD spake with you in the mount out of the midst of the fire in the day of the assembly. (Deu 9:10 KJV)
Do you accept the words of the 10 commandments?
Or are they just a bunch of hokey?