TSK · Exodus 20:25

Moses wrote all the words of Yahweh, and rose up early in the morning, and built an altar under the mountain, and twelve pillars for the twelve tribes of Israel.

as Moses the servant of Yahweh commanded the children of Israel, as it is written in the book of the law of Moses, an altar of uncut stones, on which no man had lifted up any iron. They offered burnt offerings on it to Yahweh, and sacrificed peace offerings.