Psalms - Songs and prayers expressing worship, lament, and trust in God

In Psalm 133, a Song of Ascents by David, the beauty of brothers living together in unity is celebrated, compared to precious anointing oil on Aaron's beard and the refreshing dew of Hermon.

Behold, how good and how pleasant it is for brethren to dwell together in unity!

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;

As the dew of Hermon, and as the dew that descended upon the mountains of Zion: for there the LORD commanded the blessing, even life for evermore.