King Agrippa, believest thou the prophets? I know that thou believest.
Paul had scarcely touched the power of Christ's death and resurrection, the very heartbeat of his cause, when Festus cuts him off, calling him mad. But this is the expedient of a coward: by declaring Paul insane, Festus avoids both condemning him as a criminal and believing him as a preacher. A convenient escape, but a contemptible one.
AI summary
Commenting on Acts 26:24-32
Then Agrippa said unto Paul,.... Either seriously or ironically; rather the former, arising from the convictions of his mind, which he could not stifle nor conceal: almost thou persuadest me to be a Christian; to profess faith in Jesus as the Messiah, to embrace his doctrine, and submit to his ordinances, which is to be a Christian, at least externally: and when he says "almost"...
King Agrippa. This bland personal address is an instance of Paul's happy manner of appeal. He does it to bring in the testimony of Agrippa to meet the charge of Festus that he was deranged. Believest thou the prophets? The prophecies respecting the character, the sufferings, and the death of the Messiah. I know that thou believest. Agrippa was a Jew; and, as such, he of course believed the prophets.