Again he discoursed to all his Disciples, putting them in mind, that, before his Death, he told them (Luke 24: 44, 46, 47,) that “all things must be fulfilled which were written in the law of Moses, and in the Prophets, and in the Psalms concerning him;” adding, “thus it is written, and thus it behoveth Christ (1. e. the Messiah) to suffer, and to rise from the dead the third day; and that repentance, and remission of sins should be preached in his name, beginning at Jerusalem.”
When the people of several nations, Acts 2:12, were amazed at the Apostles speaking in their several tongues, and when many mocked the Apostles, saying they were full of new wine, Peter makes a speech in public, wherein, after saying they were not drunk, because it was but the third hour of the day, he endeavours to show them, that this was spoken of by the Prophet Joel, and he concludes with proving the resurrection of Jesus from the book of Psalms.
Peter, and John, tell the people assembled at the Temple, “that God had showed by the mouth of all his Prophets, that Christ should suffer,” Acts 3:18.
Peter to justify his preaching to the Gentiles, concludes his discourse with saying, Acts 10: 43—“To Jesus gave all the Prophets witness, that through his name whosoever (i.e. Jew, or Gentile) believeth in him, shall receive remission of sins.”
Paul also endeavours to prove to the Jews in the Synagogue of Antioch, (Ib. v. 13) that the history of Jesus was contained in the Old Testament, and that he, and Barnabas were commanded in the Old Testament, to preach the gospel to the Gentiles.
On the occasion of a dispute among the Christians whether the Gentile converts were to be circumcised after the Law of Moses, and to observe the Law, we find, that after much disputing, the point was settled by James by quotation from Amos.
The Bereans are highly extolled (Acts 17: 11,) for searching the Scriptures, i.e. the Old Testament, daily, in order to find out whether the things preached to them by the Apostles were so, or no: who if they had not proved these things, i.e. Christianity from the Old Testament, ought, according to their own principles, to have been rejected by the Bereans, as teachers of false doctrine.
Paul, when accused before Agrippa by the Jews, said (Acts 26; 6,) “I stand, and am judged for the hope of the promise made of God unto our fathers,” i.e. for teaching Christianity, or the true doctrine of the Old Testament, and to this accusation he pleads guilty, by declaring in the fullest manner, that he taught nothing but the Doctrines of the Old Testament. “Having therefore (says he) obtained help of God, I continue unto this day, witnessing both to small, and great, saying now other things than those which the Prophets, and Moses did say should come, that the Christ should suffer, and that he should be the first who should rise from the Dead, and should show light unto the People, and unto the Gentiles.”