Who wrote the ten commandments?

Who wrote the (second set of) ten commandments?
God	Moses
Exodus 34:1 And the LORD said unto Moses, Hew thee two tables of stone like unto the first: and I will write upon these tables the words that were in the first tables, which thou brakest.	Exodus 34:27 And the LORD said unto Moses, Write thou these words: ... And he wrote upon the tables the words of the covenant, the ten commandments.