Exodus 19:21-23

The Voice

Eternal One (to Moses): ²¹ Go down, and warn the people not to cross the boundaries in order to try to see Me, or else many of them will die. ²² Any of the priests who draw near to Me must first rid themselves of any impurity so that I do not break loose and kill them.

Moses (to the Eternal): ²³ No one can approach Mount Sinai because You warned them when You said, “Set up boundaries around the mountain and keep the area holy and separate.”