John Gill Bible Commentary

Upon man's flesh shall it not be poured,.... That is, not upon common men, or on men's flesh in common, as was usual at feasts and entertainments in the eastern countries, see Psa 23:5 but this was not to be used on such occasions, otherwise it was poured on the flesh of some men, as Aaron and his sons, on whose head it was poured and ran down to the beard: neither shall ye make any other like it, after the composition of it; for private uses: it is holy, and it shall be holy unto you; it was set apart for sacred use by the Lord, and so it was to be reckoned by them, and not to be used in any way, or for any other purpose than he had directed: all which shows, that the grace of the Spirit belongs to the Lord's people, his priests; other men are carnal, and have no lot or part in this matter, and are not to be admitted to holy ordinances, as if they were holy persons; nor is fellowship in holy things to be allowed them; nor is counterfeit grace of any avail, which, though it may bear a likeness to true grace, is not that, nor to be so accounted, nor rested on, as feigned faith, the hypocrite's hope, dissembled love, and pretended humility.