Exodus 32:15

Then Moses turned and went down from the mountain with the two tablets of the testimony in his hand , tablets that were written on both sides ; on the front and on the back they were written .

Moses turned and went down the mountain with the two tablets of the covenant law in his hands. They were inscribed on both sides, front and back.

And Moses turned, and went down from the mount, and the two tables of the testimony were in his hand : the tables were written on both their sides; on the one side and on the other were they written.