Acts 22:21, Eph 3:8, 1 Tim 2:7, Rom 1:5, Rom 11:13, Gal 2:8
Acts 9:15 But the Lord said unto him, Go thy way: for he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel: 16 For I will shew him how great things he must suffer for my name's sake.
God established Paul to preach the gospel to the Gentiles. (Acts 22:21, Eph 3:8, 1 Tim 2:7, Rom 1:5, Rom 11:13, Gal 2:8)
Acts 22:21 And he said unto me, Depart: for I will send thee far hence unto the Gentiles.
Eph 3:8 Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;
1 Tim 2:7 Whereunto I am ordained a preacher, and an apostle, (I speak the truth in Christ, and lie not;) a teacher of the Gentiles in faith and verity.
Rom 1:5 By whom we have received grace and apostleship, for obedience to the faith among all nations, for his name:
Rom 11:13 For I speak to you Gentiles, inasmuch as I am the apostle of the Gentiles, I magnify mine office:
Gal 2:8 (For he that wrought effectually in Peter to the apostleship of the circumcision, the same was mighty in me toward the Gentiles:)