Having therefore obtained help of God - Paul had seen and felt his danger. He had known the determined malice of the Jews, and their efforts to take his life. He had been rescued by Lysias, and had made every effort himself to avoid the danger and to save his life; and at the end of all; he traced his safety entirely to the help of God. It was not by any power of his own that he had been preserved; it was because God had interposed and rescued him. Those who have been delivered from danger, if they have just views, will delight to trace it all to God. They will recognize his hand, and will feel that whatever wisdom they may have had, or whatever may have been the kindness of their friends to them, yet that all this also is to be traced to the superintending providence of God.
Witnessing - Bearing testimony to what he had seen, according to the command of Christ, Acts 26:16.
To small - To those in humble life; to the poor, the ignorant, and the obscure. Like his Master, he did not despise them, but regarded it as his duty and privilege to preach the gospel to them.
And great - The rich and noble; to kings, princes, and governors. He had thus stood on Mars’ Hill at Athens; he had declared the same gospel before Felix, Festus, and now before Agrippa. He offered salvation to all. He passed by none because they were poor; and he was not deterred by the fear of the rich and the great from making known their sins and calling them to repeatance. What an admirable illustration of the proper duties of a minister of the gospel!
Saying none other things ... - Delivering no new doctrine, but maintaining only that the prophecies had been fulfilled. As he had done this only, there was no reason for the opposition and persecution of the Jews.
Should come - Should come to pass, or should take place. Paul here evidently means to say that the doctrine of the atonement, and of the resurrection of Christ, is taught in the Old Testament.