2 Corinthians 4:5-7

For we do not preach ourselves, but Jesus Christ as Lord, and ourselves [merely] as your bond-servants for Jesus’ sake. For God, who said, “Let light shine out of darkness,” is the One who has shone in our hearts to give us the Light of the knowledge of the glory and majesty of God [clearly revealed] in the face of Christ. [Gen 1:3] But we have this precious treasure [the good news about salvation] in [unworthy] earthen vessels [of human frailty], so that the grandeur and surpassing greatness of the power will be [shown to be] from God [His sufficiency] and not from ourselves.