What's the Oil & Dew of Psalm 133?

The Oil-
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;
Psalm 133:2
The Dew-
As the dew of Hermon, and as the dew that descended upon the mountains of Zion:
Psalm 133:3

As nearly all Christians know, oil is a symbol for the Holy Spirit.
Dew is a symbol for the Word of God. (My doctrine shall drop as the rain, my speech shall distil as the dew, as the small rain upon the tender herb, and as the showers upon the grass: Deuteronomy 32:2)

SUMMARY:

We are SANCTIFIED by His Word (teaches us right from wrong) - Dew

and His Spirit (guides/helps us) - Oil

So if God's people are Sanctified--they'll be in UNITY
Behold, how good and how pleasant it is for brethren to dwell together in unity!
Psalm 133:3
--When the OIL is missing petty rivalries rise up and self asserts itself
--When the DEW is missing error and heresy casts its spell of division

PSALM 133: Communion of the Saints (Oil & Dew)

Psalm 133:

How Good How Pleasing (Psalm 133) performed by Margaret Becker

Click on Link to Listen

https://www.youtube.com/embed/CMmIPqyozQ4?list=PLT70zxsi10M8ofHg9OjEucFI03ql2WG7z

"This psalm is all about unity.

 It sanctifies and solidifies.

It’s teaching on fraternal unity would have been instructive to David’s sons, who were antagonistic toward one another, e.g.,
--Absalom murdered Ammon (2 Sam. 13:28-33),
--and Adonijah tried to preempt Solomon’s right to the throne (1 Kings 1:5-53).
The contents of this psalm in our Bibles, are short, but very proper it is "the benefit of the communion of saints."

I.          Praise of Unity (133:1);

.. how good and how pleasant it is for brethren to dwell together in unity! vs.1

II.         Pictures of Unity (133:2-3);

...for there the LORD commanded the blessing, even life for evermore. vs.3

III.       Oil on Aaron’s head (133:2);

It is like the precious ointment .. that ran down upon the beard, even Aaron's beard: vs.2

It is fragrant as the holy anointing oil, which was strongly perfumed, and diffused its odors, to the great delight of all the bystanders, when it was poured upon the head of Aaron, or his successor the high priest, so plentifully that it ran down the face, even to the binding of the garment.

IV.       Dew on Mt. Zion (133:3).

.....pleasing it is as the dew it brings abundance of blessings along with it, as numerous as the drops of dew. It cools the scorching heat of men's passions, as the evening dews cool the air and refresh the earth.

...as the dew that descended upon the mountains of Zion: vs.3"

MatthewHenry/BooksOfTheBible