Sinai and Horeb: The Truth About the Giving of the Law | Answering the Atheist
Inquiry:

Where did Moses receive the Ten Commandments? Was it on Mount Sinai (Exodus 31:18; 34:4, 32; Leviticus 26:46; 27:34; Nehemiah 9:13) or on Mount Horeb (1 Kings 8:9; 2 Chronicles 5:10; Malachi 4:4)? Is there a contradiction?
Sinai and Horeb: The Truth About the Giving of the Law | Answering the Atheist