Scarcely anything would be more interesting than a full collection of the missionary speeches of Paul. Such a collection, however, has not been preserved. The writings that we possess from the hand of Paul are not missionary addresses, but letters written to those who were already Christians. We should not, however, complain of the providence of God. God has not thought good to give us everything, but what he has given us is enough.
(b) Information Provided by The Acts.--The book of The Acts, in the first place, affords valuable information. The author was interested, indeed, chiefly in beginnings. The examples of Paul's missionary preaching which Luke has preserved, are perhaps preliminary to evangelism, rather than evangelism itself. The speech at Pisidian Antioch shows how Paul proved the Messiahship of Jesus. In winning the Jews, that proof was the first step. The Pauline gospel indeed appears, but it appears only at the very end of the speech. The speech at Athens is still more clearly of preliminary character. Monotheism needed to be established before the gospel of Christ could be understood. Despite their necessary limitations however, these speeches are instructive. They show, in the first place, that Paul adapted his preaching to the needs of his hearers. He did not preach the same sermon mechanically to all. He sought really to win men over, he began with what his hearers could understand. They show, in the second place, that all preliminary matters were kept strictly subordinate. These matters were not made an end in themselves, as is often the case in the modern Church, but were merely a means to an end. No matter where he began, Paul always proceeded quickly to the center of the gospel. Both at Pisidian Antioch and at Athens, he hastened on to the resurrection.
(c) Information Provided by the Epistles.--The Pauline Epistles, in the second place, though they are addressed to Christians, really afford sufficient information, at least in outline, about the missionary preaching of Paul. Incidental references are sufficient to show at least that the cross and the resurrection were the center and core of it. The Thessalonians, for example, under the preaching of Paul, "turned unto God from idols, to serve a living and true God, and to wait for his Son from heaven, whom he raised from the dead, even Jesus, who delivereth us from the wrath to come." This little passage is worth pages of exposition. Preaching to Gentiles is here reviewed in epitome, though of course not with studied symmetry and completeness. The knowledge of the one true God formed of course, for Gentiles, the starting point for all the rest, but from that starting point the preacher at once proceeded to tell of the work of Christ. Just as illuminating are passages like I Cor. 2:2; Gal. 3:1. In Corinth Paul knew nothing save "Jesus Christ, and him crucified"; in Galatia the story of the cross was made so plain that it was as though Jesus Christ crucified were held up before the eyes of the Galatians on a great picture or placard. The famous passage in First Corinthians, ch. 15:1-8, is, however, perhaps clearest of all. At the very beginning Paul had spoken of the death of Christ and the resurrection. The death, moreover, was not presented as a mere inspiring story of a holy martyrdom, but as a death "for our sins"; and the resurrection was supported not primarily by an inward experience, but by simple testimony.