Psalm 84:10-12 (NIV)
Better is one day in your courts than a thousand elsewhere; I would rather be a doorkeeper in the house of my God than dwell in the tents of the wicked. For the Lord God is a sun and shield; the Lord bestows favor and honor; no good thing does he withhold from those whose walk is blameless. O Lord Almighty, blessed is the man who trusts in you.
This is a beautiful picture of the blessings of living a life pleasing to God. When the bible speaks of being blessed, it means happy. The word blameless does not mean sinless perfection; it means having integrity, being faithful to his covenant with God.
Being a doorkeeper in a really fine establishment where you'd expect to see all manner of great people could be exciting. Still, that would be a menial task, a lowly position. But, the idea is that any job in the temple, no matter how insignificant, would be better than the best that world has to offer. This goes for heaven even more so. The lowliest position in heaven would still be heaven and the best position in hell would still be hell.
No good thing will He withhold. If he withheld it, it would not be good, now would it?