Psalms 133:2 [It is] like the precious ointment upon the head, that ran down upon the beard, [even] Aaron's beard: that went down to the skirts of his garments;
Ver. 2. It is like the precious ointment] This similitude setteth forth the pleasure and amenity of it; as the other (from the dew) the profit and commodity. Sic miscnit utile dulci. This ointment was most rich (as made up of the chiefest spices, Exo 30:1-38), and very fragrant, refreshing the senses, not of Aaron oaly, but of all about him; so doth Christian unity and amity (that "fruit of the Spirit," Gal 5:22) far beyond that common friendship so highly extolled by Cicero, and other heathens; and is therefore here fitly compared to that nonsuch odoriferous ointment.
Upon the head, that ran down upon the beard] So the Spirit of grace, that oil of gladness, Psalms 45:7, poured out abundantly, even to a redundancy, upon Christ the Head, runneth down upon all the members of his body mystical, even to the meanest, so that they have grace for grace.