We see Paul say he’s chosen by the will of God and not by the will of men. His authority doesn’t come from worldly officials, but by God. Paul was chosen to carry out God’s word and Christ’s message. Paul didn’t choose himself, but God called him to service. As believers were going to be called to whatever God wants us and we should do God’s will. Once those opportunities arise we should not reject them, but go at them. Lastly The idea of God’s will over Paul’s life is one of Paul’s common themes for his letters. This not only gives Paul authority to make his claims, it gives him reasons to endure persecution and suffering.