The Law of Moses: None to Approach the Mount While God Gave

No hand shall touch him, but he shall surely be stoned or shot with arrows—whether man or beast, he must not live.’ Only when the ram’s horn sounds a long blast may they approach the mountain.”

…and the LORD said to him, “Go down and warn the people not to break through to see the LORD, lest many of them perish. …

For they could not bear what was commanded: “If even an animal touches the mountain, it must be stoned.”