2 Corinthians / Question
Paul says "we have this treasure in jars of clay" so that the surpassing power is seen to belong to God and not to them. He then describes being afflicted, perplexed, persecuted, and struck down, yet not destroyed. See 2 Corinthians 4:7–9.
In 2 Corinthians 4:7–12 Paul says the message and ministry he carries are like a valuable treasure placed in fragile clay jars. The contrast is meant to highlight that the strength behind the work is God’s, not the messenger’s. He lists intense pressures and dangers, yet insists they do not have the final word. This paragraph continues Paul’s explanation of his ministry’s character in chapter 4. Just before it, he describes the ministry as open and truthful and as bringing “light” that points to the knowledge of God’s glory seen in Christ (2 Corinthians 4:5–6).
Paul’s main contrast is clear: something highly valuable (“treasure”) is being carried by something weak and breakable (“earthen vessels”). The point of the contrast is also explicit in the text: it makes the “surpassing power” show up as God’s, not the messengers’ (verse 7).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with 2 Corinthians 4:7-9, then read the surrounding section so the answer stays connected to the passage's flow.
7But we have this treasure in earthen vessels, that the exceeding greatness of the power may be of God, and not from ourselves.
8We are pressed on every side, yet not crushed; perplexed, yet not to despair;
9pursued, yet not forsaken; struck down, yet not destroyed;