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?
I guess kind of like these?
Exd 21:16 And he that stealeth a man, and selleth him, or if he be found in his hand, he shall surely be put to death.
I don't see where it says those words were placed on stone tablets.