In reading Rev Roderick MacLeod's article, I came to this section:

“3. Psalms where David, or some other Old Testament figure is a type of
Christ. We will mention a few examples.
What is Psalm 133 to us if it speaks only of the anointing oil running
down the beard of Aaron and to the skirts of his garments? What if we are
not directed thereby to our great high Priest, and His holy unction flowing
down to His people? What if we are not to think of believers as like the
woman with the issue of blood, around His garments, speaking the language
of faith and love and drawing virtue from Him?
It is of comparatively small value today to read Psalm 89 and think only
of the sad decline of the royal house of David and the apparent decline of the
royal covenant which God made with him. But it is of great use to us to look
at the “Man of rest” promised to David – the “Prince of peace” who was to
sit upon his throne.”

His interpretation is troubling. Psalm 133 is speaking about the blessing of God's gift of unity. The similes of oil and dew are profound when their origin is considered. Like brotherly unity, they are coming down from God. cf. Kidner.

Is the text not clear?

__________________
Brett McKinley
Member, Pilgrim Bible Church (1689 LBC)
Steilacoom, Washington.

Charles Bridges on Proverbs 16:21a, "There is either a superstitious scrupulousness, or a reckless indifference; sometimes conscience about everything, sometimes about nothing. Prudent wisdom gives consistency to the whole system."