Numbers 8:5

3 And Aaron did so; he lighted the lamps thereof over against the candlestick, as the Yahuah commanded Moses.

4 And this work of the candlestick beaten gold, unto the shaft thereof, unto the flowers thereof, beaten work: according unto the pattern which the Yahuah had shewed Moses, so he made the candlestick.

5 And the Yahuah spake unto Moses, saying,

6 Take the Levites from among the children of Israel, and cleanse them.

7 And thus shall you do unto them, to cleanse them: Sprinkle water of purifying upon them, and let them shave all their flesh, and let them wash their clothes, and make themselves clean.