The musical instruments he mentions were peculiar to this infancy of the Church, nor should we foolishly imitate a practice which was intended only for God’s ancient people. But the Psalmist confirms what has been already mentioned, that their religious assemblies which had been for a time interrupted would soon be restored, and they would call upon the name of the Lord in the due order of his worship.

John Calvin on Psalm 149:3 in Commentary on the Psalms, trans. James Anderson.