John Wesley on 2 Corinthians 4:7

But we - Not only the apostles, but all true believers. Have this treasure - Of divine light, love, glory. In earthen vessels - In frail, feeble, perishing bodies. He proceeds to show, that afflictions, yea, death itself, are so far from hindering the ministration of the Spirit, that they even further it, sharpen the ministers, and increase the fruit. That the excellence of the power, which works these in us, may undeniably appear to be of God.