Paul was made a minister of the Gospel, Col. 1. 23, and also a minister of the church, 1. 24-25. Both ministries are alluded to in Romans 16. 25-27, “Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began”, etc. The apostle’s letters which chiefly unfold these two ministries are Romans (dealing with the gospel) and Ephesians (dealing with the church). Two sections, one in each of these letters, make for an interesting comparison when set side-by-side.
"For I have appeared unto thee for this purpose, to make thee a minister and a witness both of these things which thou hast seen, and of these things in the which I will appear unto thee”, Acts 26. 16.
Romans 11. 13-36 (24 verses)
Ephesians 3. 1-21 (21 verses)