Covenant of the Ten Commandments
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Exodus 34:28
So Moses was there with the LORD forty days and forty nights without eating bread or drinking water. He wrote on the tablets the words of the covenant—the Ten Commandments.
Deuteronomy 5:2, 3
The LORD our God made a covenant with us at Horeb. / He did not make this covenant with our fathers, but with all of us who are alive here today.
Deuteronomy 9:9
When I went up on the mountain to receive the tablets of stone, the tablets of the covenant that the LORD made with you, I stayed on the mountain forty days and forty nights. I ate no bread and drank no water.