Numbers 16:46-50

46So Moses said to Aaron, “Take a censer and put fire in it from the altar, put incense on it, and take it quickly to the congregation and make atonement for them; for wrath has gone out from the Lord. The plague has begun.”

47Then Aaron took it as Moses commanded, and ran into the midst of the assembly; and already the plague had begun among the people. So he put in the incense and made atonement for the people.

48And he stood between the dead and the living; so the plague was stopped.

49Now those who died in the plague were fourteen thousand seven hundred, besides those who died in the Korah incident.

50So Aaron returned to Moses at the door of the tabernacle of meeting, for the plague had stopped.