Albert Barnes Commentary Psalms 132:16

"Her priests also will I clothe with salvation; And her saints shall shout aloud for joy." — Psalms 132:16 (ASV)

I will also clothe her priests with salvation - See the notes at Psalms 132:9, where—instead of the word which in 2 Chronicles 6:41, as here, is “salvation”—we find the word “righteousness.” The promise here corresponds to the prayer in Psalms 132:9. It is a reason why God should interpose. What they prayed for (Psalms 132:9) had been expressly promised, and that promise is now urged as a plea why the prayer should be granted.

And her saints shall shout aloud for joy - See Psalms 132:9. In 2 Chronicles 6:41 the prayer is, And let thy saints rejoice in goodness. The sense is not materially varied. The Hebrew is, And let thy saints rejoicing rejoice; that is, let them shout, shout; let them be full of joy.