Ephesians 3:7-8

Of this [gospel] I was made a minister by the gift of God’s grace given me through the working of His power. To me, [though I am] the very least of all the saints (God’s people), this grace [which is undeserved] was graciously given, to proclaim to the Gentiles the good news of the incomprehensible riches of Christ [that spiritual wealth which no one can fully understand]