Leviticus 24:14, 16

“Take the one who spoke against me outside the camp. Then all the people who heard him must put their hands on his head, and all the people must throw stones at him and kill him.

Anyone who speaks against the LORD must be put to death; all the people must kill him by throwing stones at him. Foreigners must be punished just like the people born in Israel; if they speak against the LORD, they must be put to death.