Exodus 29:44

44 And I will sanctify the tabernacle of testimony and the altar, and I will sanctify Aaron and his sons, to minister as priests to me.

Exodus 29:44 Meaning and Commentary

Exodus 29:44

And I will sanctify the tabernacle of the congregation, and
the altar
This seems to intimate that something else in the preceding verse is intended, as what should be sanctified, than the tabernacle, as we supply it; or else here is a repetition of the same thing for the confirmation of it, and both that and the altar were, sanctified, or set apart for holy uses, as well as cleansed and expiated by sacrifices:

I will sanctify also both Aaron and his sons, to minister to me in the
priest's office;
that is, in a ceremonial way, by separating them from the rest of the children of Israel, by washing, clothing, and anointing them, and by accepting sacrifices offered by them; for this is not to be understood of internal sanctifying grace, which, though Aaron had, and many of his sons that succeeded him, yet not all; nor was it necessary to the performance of the priestly office, though it is in all those who are a royal priesthood, and made priests as well as kings unto God; for they are a holy nation, called with an holy calling, and unto himself, and have it both internally and externally.

Exodus 29:44 In-Context

42 a perpetual sacrifice throughout your generations, at the door of the tabernacle of witness before the Lord; wherein I will be known to thee from thence, so as to speak to thee.
43 And I will there give orders to the children of Israel, and I will be sanctified in my glory.
44 And I will sanctify the tabernacle of testimony and the altar, and I will sanctify Aaron and his sons, to minister as priests to me.
45 And I will be called upon among the children of Israel, and will be their God.
46 And they shall know that I am the Lord their God, who brought them forth out of the land of Egypt, to be called upon by them, and to be their God.

The Brenton translation of the Septuagint is in the public domain.