Exodus 24:1-4

1Then He said to Moses, “1Come up to the Lord, you and Aaron, 2Nadab and Abihu, and 3seventy of the elders of Israel, and you shall worship at a distance. 2Moses alone, however, shall approach the Lord, but they shall not approach, nor shall the people come up with him.”

3Then Moses came and reported to the people all the words of the Lord and all the 4ordinances; and all the people answered with one voice and said, “5All the words which the Lord has spoken we will do!” 4And 6Moses wrote down all the words of the Lord. Then he got up early in the morning, and built an 7altar 8at the foot of the mountain with twelve memorial stones for the twelve tribes of Israel.