Numbers 8:19

Complete Jewish Bible

¹⁹ and I have given the L’vi’im to Aharon and his sons from among the people of Isra’el to do the service of the people of Isra’el in the tent of meeting and to make atonement for the people of Isra’el, so that no plague will fall on the people of Isra’el in consequence of their coming too close to the sanctuary.”