O God, by the preaching of your apostle Paul you have
caused the light of the Gospel to shine throughout the
world: Grant, we pray, that we, having his wonderful
conversion in remembrance, may show ourselves thankful
to you by following his holy teaching; through Jesus Christ
our Lord, who lives and reigns with you, in the unity of
the Holy Spirit, one God, now and for ever. Amen.
You probably don't need to read about Paul to know who he is, but if you would like to read some brief scholarly thought on his letters, here's a link to Satucket's page.