According to the Bible, where did God give Moses the Ten Commandments?

In the Bible, Mount Sinai is the mountain at which the Ten Commandments were given to Moses by God. In the Book of Deuteronomy, these events are described as having transpired at Mount Horeb. "Sinai" and "Horeb" are generally considered to refer to the same place by scholars.

The biblical account of the giving of the instructions and teachings of the Ten Commandments was given in the Book of Exodus, primarily between chapters 19-24, during which Sinai is mentioned by name twice, in Exodus 19:2; 24:16. In the story Sinai was enveloped in a cloud, it quaked and was filled with smoke, while lightning flashes shot forth, and the roar of thunder mingled with the blasts of a trumpet; the account later adds that fire was seen burning at the summit of the mountain.

In the biblical account, the fire and clouds are a direct consequence of the arrival of God upon the mountain. According the the biblical story, Moses departed to the mountain and stayed there for 40 days and nights in order to receive the Ten Commandments and he did so twice because he broke the first set of the tabled of stone after returning from the mountain for the first time.