Blessed are they that dwell in thy house: they will be still praising thee. /*Selah*/.
They-That constantly abide in thy house; the priests and Levites, or other devout Jews who were there perpetually, as Anna, Luke 2:36-37.
They will — They are continually employed in that blessed work.
 Blessed is the man whose strength is in thee; in whose heart are the ways of them.
Whose strength — Who trusteth in thee as his only strength.
Thy ways — Blessed are they whose hearts are set upon Zion and their journey is thither.
 Who passing through the valley of Baca make it a well; the rain also filleth the pools.
Baca — A dry valley in the way to Jerusalem, here put for all places of like nature.
Make a well — They dig divers little pits or wells in it for their relief.
The rain — God recompenses their diligence with his blessing, sending rain wherewith they may be filled.
 They go from strength to strength, every one of them in Zion appeareth before God.
They go — They grow stronger and stronger.
Appeareth — This is added as the blessed fruit of their long and tedious journey.
 Behold, O God our shield, and look upon the face of thine anointed.
Look — Cast a favourable eye towards him.
Anointed — Of me, who though a vile sinner, am thine anointed king.
 For a day in thy courts is better than a thousand. I had rather be a doorkeeper in the house of my God, than to dwell in the tents of wickedness.
Than dwell — In the greatest glory and plenty.
 For the LORD God is a sun and shield: the LORD will give grace and glory: no good thing will he withhold from them that walk uprightly.
A sun — To enlighten and quicken, and direct and comfort his people.
Shield — To save his people from all their enemies.
Grace — His favour, which is better than life.
Glory — The honour which comes from God here, and eternal glory.