Mark Twain ? He would do a good job with that if it were true!
Who wrote the second set of stone tablets that Moses carried down the mountain?
The spirit of George Carlin?
While I am greatly disinclined to lend credence to the OT, it says in EX 34:27, "And the Lord said unto Moses, Write thou these words: For after the tenor of these words I have made a covenant with thee and with Israel." So one is led to think Moses did it.
I am loath to quote scripture, as I have no wish of being lumped together with those who do nothing else.
My guess is Lucy Van Pelt.
Here's a quote from an internet reference: (Some of the atheists on here think they know more about Christianity than us Christians, so I'll let them search for the quote if by some "miracle" they are not familiar with it.)
"Contrary to what skeptics allege, Exodus 34 and Deuteronomy 10 are not contradictory. Moses was not acting under divine direction to physically write the Decalogue on the second pair of tablets. Rather, as Jamieson, Fausset, and Brown recognized in their commentary on Deuteronomy, 'God Himself...made the inscription a second time with His own hand, to testify the importance He attached to the Ten Commandments.'”