Exodus 32:27

32:27 He said to them, "Thus says Yahweh, the God of Israel, 'Every man put his sword on his thigh, and go back and forth from gate to gate throughout the camp, and every man kill his brother, and every man his companion, and every man his neighbor."
-World English Bible

Other Translation

32:27 And he said unto them, Thus saith the LORD God of Israel, Put every man his sword by his side, [and] go in and out from gate to gate throughout the camp, and slay every man his brother, and every man his companion, and every man his neighbour.
-King James Version