From the text of Numbers 5:17 we learn that the tabernacle floor was inglorious and made of dust. In every other direction one would look there were relics of magnificent beauty... as long as one didn't look down!
In the Lord's church today, we must set our minds on things above, and fix our eyes on Jesus, and lift your head to your redemption. God's house is made up of dusty earthen vessels, yet God desires us to see far more than a dirty old house.
There is plenty to criticize even among the church of God, but then you are looking down instead of where your eyes should be.