Psalms 132:9 - Matthew Poole's English Annotations on the Holy Bible

With righteousness; not only with those outward sacerdotal garments of glory and beauty which thou hast appointed for them, but especially with those inward ornaments of righteousness and true holiness, that so their persons and services may be accepted by thee, both for themselves and for all thy people, and they may be clothed with salvation, as it is expressed here below, Psalms 132:16 2 Chronicles 6:41, which is the effect or consequent of the former clothing. Let thy saints shout for joy; let all thy people have cause of rejoicing in the tokens of thy goodness; which they eminently had at the dedication of the temple, as is noted, 1 Kings 8:66.