Bible Notes Online - Psalms 149 - ESV
Commentary

Praise to God from His people.

v1-4: The people of God are called to praise Him; they join together to sing a new song. They are described as the assembly of the saints, Israel, the people of Zion, His people, the humble. There is exuberant praise, with music and dancing.

v5: This praise to God is characterised by joy, and His people are full of joy. Even on their beds they sing. Since God delights in His people (v4); no wonder we respond with joy!

v6-9: See Ps 2.8-9; the authority of God is given to His people; the kingdoms of this world will become the kingdoms of His Christ. Israel will share in the 1000 year reign, and will execute authority and judgment; this honour is for all His saints.