Like the precious ointment upon the head. We have here clear proof that David, as we have just said, holds all true union among brethren to take its rise from God, and to have this for its legitimate object, that all may be brought to worship God in purity, and call upon iris name with one consent. Would the similitude have been borrowed from holy ointment if it had not been to denote, that religion must always hold the first place? [1] Any concord, it is thus insinuated, which may prevail amongst men, is insipid, if not pervaded by a sweet savor of God's worship. We maintain, therefore, that men are to be united amongst themselves in mutual affection, with this as the great end., that they may be placed together under the government of God. If there be any who disagree with these terms, we would do well rather to oppose them strenuously, than purchase peace at the expense of God's honor. We must hold, that when mention is made of the Priest, it is to intimate, that concord takes its rise in the true and pure worship of God, while by the beard and skirts of the garments, we are led to understand that the peace which springs from Christ as the head, is diffused through the whole length and breadth of the Church. The other figure, of the dew distilling upon Mount Zion and Hermon, denotes, that a holy unity has not only a sweet savor before God, but is productive of good effects, as the dew moistens the earth and supplies it with sap and freshness. Moses, we know, said of Judea, that it was not like Egypt fertilized by the overflowings of its river, but such as drank daily of the rain of heaven. (Deuteronomy 11:11.) David suggests, that the life of man would be sapless, unprofitable, and wretched, unless sustained by brotherly harmony. It is evident, that mount Hermon must have been rich and fruitful, being famed amongst places for pasture. Mountains depend principally for fertility upon the dews of heaven, and this was shown in the case of mount Zion. David adds in the close, that God commands his blessing where peace is cultivated; by which is meant, that he testifies how much tie is pleased with concord amongst men, by showering down blessings upon them. The same sentiment is expressed by Paul in other words, (2-Corinthians 13:11; Philippians 4:9,) "Live in peace, and the God of peace shall be with you." Let us then, as much as lies in us, study to walk in brotherly love, that we may secure the divine blessing. Let us even stretch out our arms to those who differ from us, desiring to bid them welcome if they will but return to the unity of the faith. Do they refuse? Then let them go. We recognize no brotherhood, as I have said already, except amongst the children of God.

Footnotes

1 - "Car a quel propos tireroit il ceste similitude de l'huile sacree, sinon a ceste fin clue la vraye religion tiene tousjours le premier lieu?" Ft.

As the dew of Hermon - On the situation of Mount Hermon, see the notes at Psalm 89:12. The literal rendering of this passage would be, "Like the dew of Hermon which descends on the mountains of Zion." According to our version two things are referred to: the dew of Hermon, and the dew on the mountains of Zion, But this is not in the original. There no dew is referred to but that which belongs to Hermon. It has, of course, been made a question how the dew of Hermon, a remote mountain, could be said to descend on the mountains of Zion, and our translators have sought to solve the difficulty by inserting the words "and as the dew." Some have supposed that the proper interpretation is to refer the comparison in the passage to the dew of Hermon, and that all which follows is an application of the thought: "Like the dew of Hermon is the influence which comes down upon the mountains of Zion," etc.
The most probable and plausible interpretation, however, it seems to me, is, that the mind of the poet was turned to the dew of Hermon - to the gentleness, and the copiousness, and the vivifying nature of that dew - diffusing beauty and abundance all around - and that he thought of that dew, or dew like that, as descending on the mountains of Zion. Not that the dew of Hermon actually descended there; but when changing the comparison, in illustration of brotherly love, from oil to dew, he most naturally thought (perhaps from some former observation) of the dew of Hermon, and immediately thought of Zion as if that dew descended there: that is, love, unity, and concord there would be as if the dew of Hermon should descend on the barren hills of Zion or Jerusalem, there diffusing beauty, abundance, fertility. The comparison of the influence of brotherly love, or unity, with dew is not a forced or unnatural one. So calm, so gentle, so refreshing on the tender grain, on the young plants, on the flowers, is dew, that it is a striking image of the influences which produce brotherly love and harmony.
For there the Lord commanded the blessing - He appointed that as the place of worship; as the seat of his residence; the source of all holy influences. See Psalm 78:67-69, note; Psalm 87:2, note.
Even life for evermore - literally, "Life to eternity." That is, such influences go from that place as to lead to eternal life, or as to secure eternal life. It is in Zion, in his church, that he has made known the way to eternal life, and the means by which it may be obtained. To the end of the world this beautiful psalm will be sung in the church alike as expressing the charm which there is in unity among brethren and in the church; and as tending to promote that unity whose beauty it is designed to commend. Happy will be that day when the church shall be so united that it may be sung everywhere, as expressing what is, and not merely what should be.

As the dew of Hermon, and as the dew that descended upon the mountains of Zion - This was not Mount Zion, ציון tsiyon, in Jerusalem, but Sion, שיאן which is a part of Hermon, see Deuteronomy 4:48 : "Mount Sion, which is Hermon." On this mountain the dew is very copious. Mr. Maundrell says that "with this dew, even in dry weather, their tents were as wet as if it had rained the whole night." This seems to show the strength of the comparison.
For there - Where this unity is.
The Lord commanded the blessing - That is, an everlasting life. There he pours out his blessings, and gives a long and happy life.
For other particulars, see the commentators passim, and the following analysis.

As the dew of (c) Hermon, [and as the dew] that descended upon the mountains of Zion: for (d) there the LORD commanded the blessing, [even] life for evermore.
(c) By Hermon and Zion he means the plentiful country about Jerusalem.
(d) Where there is such concord.

As the dew of Hermon, and as the dew that descended upon the mountains of Zion,.... Hermon was a very high hill beyond Jordan; the Sidonians called it Sirion, and the Amorites Shenir, Deuteronomy 3:8; hence Shenir and Hermon are mentioned together, Song 4:8; and sometimes Sion or Seon, Deuteronomy 4:48; and is the Zion here intended; for the dew of Hermon could never descend on the mountain of Zion near Jerusalem, which was a hundred miles distant; besides Zion was but one mountain, these many. Hermon was remarkable for its dew, which still continues: a traveller (c), one of our own country, and whose fidelity is to be depended on, lying in tents near this hill one night, says,
"we were sufficiently instructed by experience what the holy psalmist means by the dew of Hermon; our tents being as wet with it as if it had rained all night.''
The mountains of Zion were those that were near to Zion, and not the mountain itself, those that were round about Jerusalem, on which the dew also fell in great plenty; and to which unity among brethren is here compared, because it comes from God in heaven, as the dew does. Saints are taught of God to love one another; contentions and quarrels come from lusts within, but this comes from above, from the Father of lights; and, because of its gentle nature, this makes men pure, and peaceable, and gentle, and easy to be entreated; as the dew falls gently in a temperate and moderate air, not in stormy and blustering weather: and because of its cooling nature; it allays the heats and animosities in the minds of men; and because it makes the saints fruitful, and to grow and increase in good works;
for there the Lord commanded the blessing; either in the mountains of Zion; so Kimchi: and if Mount Zion is meant by it, the church, often signified thereby, is the dwelling place of the Lord; here he records his name and blesses; here his word is preached, which is full of blessings; and here ordinances are administered, which are blessed of God to his people. Theodoret thinks some respect is had to the pouring down of the Spirit on the apostles in Jerusalem, on the day of Pentecost: but rather the sense is, where brethren dwell together in unity, there the God of love and peace is; the Gospel of the grace of God is continued; and the ordinances of it made beneficial to the souls of men, they meeting together in peace and concord; see 2-Corinthians 13:11. God is said to "command the blessing" when he promises it, and makes it known to his people, or bestows it on them, Psalm 105:8;
even life for evermore: the great blessing of all, which includes all others, and in which they issue, the promise of the covenant, the blessing of the Gospel; which is in the hands of Christ, and comes through him to all his people; to the peacemakers particularly, that live in love and peace; these shall live for ever in a happy eternity, and never die, or be hurt of the second death.
(c) Maundrell's Travels, p. 57. Ed. 7.

there--that is, in Zion, the Church; the material Zion, blessed with enriching dews, suggests this allusion the source of the influence enjoyed by the spiritual Zion.
commanded the blessing--(Compare Psalm 68:28).
stand in the house of the Lord--at the time of the evening sacrifice, to unite in praising God in their name and that of the people, using appropriate gestures, to which the priests reply, pronouncing the Mosaic blessing which they alone could pronounce. A fit epilogue to the whole pilgrim-book, Psalm 120-134.
by night--the evening service (Psalm 141:2), as opposed to morning (Psalm 92:2).

Zion - It is as desirable as the dew which falls upon mount Hermon, nay, as desirable as that heavenly dew of God's ordinances and graces which he hath commanded to fall upon the mountains of Zion and Moriah, and others which are round about Jerusalem. There - Where brethren live in peace and unity.