'Begun' in the Bible

Moses said to Aaron, "Take your censer, and put fire from off the altar in it, and lay incense on it, and carry it quickly to the congregation, and make atonement for them; for wrath has gone out from Yahweh! The plague has begun."

Aaron did as Moses said, and ran into the midst of the assembly; and behold, the plague has begun among the people: and he put on the incense, and made atonement for the people.