But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.
All Commentaries on 2 Corinthians 4:7 Go To 2 Corinthians 4
Ambrosiaster
AD 400
By treasure, Paul meant the sacrament of God in Christ, which is made manifest to believers but which has been concealed from unbelievers with a veil. Just as a treasure is put in a hidden place, the sacrament of God is hidden within a person, in his heart. The reference to earthen vessels is an allusion to the weakness of human nature, which can do nothing unless empowered by God. Commentary on Paul’s Epistles.