1 Corinthians 15:9

For I am the least of the apostles, unworthy to be called an apostle, because I persecuted the church of God.

Ephesians 3:8-10

To me, though I am the very least of all the saints, this grace was given, to preach to the Gentiles the unsearchable riches of Christ, and to bring to light for everyone what is the plan of the mystery hidden for ages in God who created all things, so that through the church the manifold wisdom of God might now be made known to the rulers and authorities in the heavenly places.

1 Timothy 1:15

The saying is trustworthy and deserving of full acceptance, that Christ Jesus came into the world to save sinners, of whom I am the foremost.