Let your priests be clothed with righteousness; and let your saints shout for joy.
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Augustine of Hippo
9. "Let Thy priests be clothed with righteousness, and let Thy saints sing with joyfulness" (ver. 9). When Thou risest from the dead, and goest unto Thy Father, let that royal Priesthood be clothed with faith, since "the righteous liveth by faith;" and, receiving the pledge of the Holy Spirit, let the members rejoice in the hope of resurrection, which went before in the Head: for to them the Apostle saith, "Rejoicing in hope." ...
Justice. And all virtues, (Berthier) of which their robes were emblematical.
Saints. Levites. (Chaldean) (Calmet)
Let both priests and Levites perform well their sacred functions, (Worthington) and may all the faithful act up to their vocation. (Berthier)
Rejoice. Hebrew, "sing "which was the office of the Levites. (Calmet)
Yet the original term is more comprehensive, and denotes all the emotions of joy. (Haydock) ...