Psalm 133 (World English Bible)
1 See how good and how pleasant it is for brothers to live together in unity!
2 It is like the precious oil on the head, that ran down on the beard, even Aaron’s beard; that came down on the edge of his robes;
3 like the dew of Hermon, that comes down on the hills of Zion: for there Yahweh gives the blessing, even life forever more.
What Psalm 133 means
"See how good and how pleasant it is for brothers to live together in unity!" David gives two pictures.
First, unity is like the precious oil poured on Aaron's head when he was anointed as high priest, running down his beard and over the collar of his robes. It flows from the head downward and covers everything.
Second, it is like the dew of Hermon, the high mountain in the far north, falling on the hills of Zion. Fresh life from far away settling on dry ground.
Then the reason: "for there Yahweh gives the blessing, even life forever more."
Where it fits in the Songs of Ascent
In Psalm 122 the city was bound firmly together as the tribes went up. Here the people dwell together, and blessing flows from it. At the feast, families from every region camped side by side in Jerusalem. Unity was something you could see.
A question to sit with
Where have you seen unity release blessing, and where is God asking you to pursue it?
A prayer you can pray
Lord, make Your people one. Where there is division, pour out Your oil and Your dew. Show me where to pursue peace and unity, so that Your blessing would flow, life forevermore. In Jesus' name, amen.
Go deeper
Scripture quotations are from the World English Bible (public domain).