民數記 8:19

我從以色列人中將利未人當作賞賜給亞倫和他的兒子，在會幕中辦以色列人的事，又為以色列人贖罪，免得他們挨近聖所，有災殃臨到他們中間。」

And I have given the Levites as a gift to Aaron and to his sons from among the children of Israel, to do the service of the children of Israel in the tabernacle of the congregation, and to make an atonement for the children of Israel: that there be no plague among the children of Israel, when the children of Israel come nigh unto the sanctuary.