Leviticus 8:5

Overview - Leviticus 8
Moses consecrates Aaron and his sons.
14 Their sin offering.
18 Their burnt offering.
22 The ram of consecration.
31 The place and time of their consecration.
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Leviticus 8:5  (King James Version)
And Moses said unto the congregation, This is the thing which the LORD commanded to be done.

Lord commanded to be done
Exodus 29:4-37