Exodus 19:22-24

The Voice

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.”

Eternal One: ²⁴ Go back down and bring Aaron with you next time. But do not let any of the people (including priests) cross those boundaries to come up and meet Me, unless they want Me to break loose and kill them.