Commentaries:
Barnes' Notes
Blessed are they that dwell in thy house - Who are constantly there; whose permanent abode is there. The reference is to the priests and Levites - the ministers of religion - who had their permanent abode near the tabernacle and the temple, and who were wholly devoted to the sacred duties of religion. Their lot is here spoken of as a blessed, or as a happy lot, in contradistinction from those who had only the opportunity of occasionally going up to worship. Compare the notes at Psalms 65:4.
They will be still praising thee - They will do it constantly, as their daily employment. It will not be worship begun and ended, but worship continued - the regular business from day to day. Such will heaven be; and this will constitute its glory. There will be
(a) a permanent residence there: "Him that overcometh will I make a pillar in the temple of my God, and he shall go no more out," Revelation 3:12; and
(b) there will be the constant service of God; such a service that it may be described as perpetual praise.
The Septuagint and the Latin Vulgate render this, "They will praise thee for ages of ages;" that is, forever.
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