Psalm 149

I don't know why verses 6-9 never caught my attention before.  I have held the belief that with the exception of the inhabitents of Caanan Land and any other kingdom that God explicitly commanded them to punish Israel was not God's means of judgment on other nations. It was not God's plan to send Israel's armies on a global conquest mission to lead the world to him. But that is the apparent meaning of these 4 verses. So there has to be more to this message than meets my eyes or my theology needs some adjusting.
It took me less than 2 minutes to read this psalm.
Stuart