'Two Tablets' in the Bible

When he finished speaking with Moses on Mount Sinai, he gave him the two Tablets of the Testimony, tablets of stone written by the finger of God.

Then Moses turned and went down the mountain with the two Tablets of the Testimony in his hand, tablets which were written on both sides. They were written on one side and the other.

When Moses came down from Mount Sinai, he had the two tablets in his hand, and he did not know that the skin of his face was ablaze with light because he had been speaking with God.