Paul was an unwearied worker. He traveled constantly from place to place, sometimes through inhospitable regions, sometimes on the water, through storm and tempest. He allowed nothing to hinder him from doing his work. He was the servant of God and must carry out His will. By word of mouth and by letter he bore a message that ever since has brought help and strength to the church of God. To us, living at the close of this earth's history, the message that he bore speaks plainly of the dangers that will threaten the church, and of the false doctrines that the people of God will have to meet. SR 310.1
From country to country and from city to city Paul went, preaching of Christ and establishing churches. Wherever he could find a hearing, he labored to counterwork error and to turn the feet of men and women into the path of right. Those who by his labors in any place were led to accept Christ, he organized into a church. No matter how few in number they might be, this was done. And Paul did not forget the churches thus established. However small a church might be, it was the object of his care and interest. SR 310.2
Paul's calling demanded of him service of varied kinds—working with his hands to earn his living, establishing churches, writing letters to the churches already established. Yet in the midst of these varied labors he declared, “This one thing I do.” (Philippians 3:13.) One aim he kept steadfastly before him in all his work—to be faithful to Christ, who, when he was blaspheming His name and using every means in his power to make others blaspheme it, had revealed Himself to him. The one great purpose of his life was to serve and honor Him whose name had once filled him with contempt. His one desire was to win souls to the Saviour. Jew and Gentile might oppose and persecute him, but nothing could turn him from his purpose. SR 310.3