4:7 this treasure. The gospel ministry and the accompanying new covenant power of the Holy Spirit.
jars of clay. Our weak human natures, including but not limited to our physical bodies. They are a great contrast to the glory of the gospel, and Paul reminds us that God’s way is to work through those who are weak or unimpressive in the world’s eyes.
to God. A characteristic theme in the epistle. Paul’s concern is always to give glory to God, not himself.