Exodus 19:22-24

Living Bible

²² Even the priests on duty^[a] must sanctify themselves, or else I will destroy them.”

²³ “But the people won’t come up into the mountain!” Moses protested. “You told them not to! You told me to set boundaries around the mountain and to declare it off limits because it is reserved for God.”

²⁴ But Jehovah said, “Go down and bring Aaron back with you, and don’t let the priests and the people break across the boundaries to try to come up here, or I will punish them.”