1 Peter 1:12

Unto whom it was revealed,— Many of the things foretold by the ancient prophets, did evidently relate to distant times, and many of them to the coming of Christ, and the numerous conversions of the Jews and Gentiles to his holy religion. St. Peter very properly mentions it, to the honour of Christians, that the ancient prophets, ministered not unto themselves, but unto them: and it was a great confirmation to their faith to compare the prediction and event, and observe their harmony. By using the phrase, Those that have preached the gospel unto you, St. Peter seems to speak of these Christians, not as his own converts, but as converted by others; probably they had been converted by St. Paul and his assistants. St. Peter here plainly alludes to the prophesy, Joel 2:28 which he himself declared to be accomplished, Acts 2:16; Acts 2:47. The apostles evidently laid claim to the Spirit of God as their infallible guide in things which concerned the Christian doctrine; and did actually understand and plant Christianity by the same Spirit which had inspired the ancient prophets: but they never pretended to be infallible and unpeccable in their other conduct; neither was there any occasion that they should be so. Doddridge paraphrases the last clause of the verse thus: "And indeed, the doctrines which they preach, are things of so great excellence and importance, as to be well worthy the regard of angels, as well as men. And accordingly, as the images of the cherubim on the mercy-seat seem to bow down, to look upon the tables of the law, laid up in the ark; so those celestial spirits do, from their heavenly abode, desire to bend down, to contemplate such a glorious display of divine wisdom and goodness." See James 1:25.