1331 A Song of Ascents. Behold, how good and pleasant it is when brothers dwell in unity! 2 It is like the precious oil upon the head, running down upon the beard, upon the beard of Aaron, running down on the collar of his robes! 3 It is like the dew of Hermon, which falls on the mountains of Zion! For there the Lord has commanded the blessing, life for evermore.