The beauty of the Lord— i.e. The cheering countenance of God, whose presence was more conspicuously manifested in his temple.
Related Commentaries of Psalms 27:4
Psalms 27:4
4 One thing have I desired of the LORD, that will I seek after; that I may dwell in the house of the LORD all the days of my life, to behold the beautyb of the LORD, and to enquire in his temple.