We are getting very close to the Law being given, beginning with the 10 Commandments, at Mount Sinai. In this chapter the people are warned to keep their distance, they sanctify themselves for three days and Moses is called up the mountain with Aaron to meet God.

Exodus 19

In the third month, on the same day of the month the children of Israel had gone forth out of the land of Egypt, they came into the wilderness of Sinai.