Leviticus 24:13-16, 23

Then GOD spoke to Moses: “Take the blasphemer outside the camp. Have all those who heard him place their hands on his head; then have the entire congregation stone him. Then tell the Israelites, Anyone who curses God will be held accountable; anyone who blasphemes the Name of GOD must be put to death. The entire congregation must stone him. It makes no difference whether he is a foreigner or a native, if he blasphemes the Name, he will be put to death.

Moses then spoke to the People of Israel. They brought the blasphemer outside the camp and stoned him. The People of Israel followed the orders GOD had given Moses.