Third, the need for purification of the sanctuary and its altars shows that sin endangered the community's relationship with their God. The Creator of the universe, the covenant God who had spoken with such power from Sinai, was the same God who had descended in Exodus 40 into the tabernacle at the center of their camp. The people were shown on a regular basis that they should not take their sin lightly, lest this God abandon a defiled and unworthy tabernacle.—A Severe Mercy, page 76
A good reminder to us all! Again, I'm struck by the continuity between the covenants...