Bede : And Achish said, "Have you seen the man who is insane," etc.? David, indeed, suspected by the Gittites due to his reputation for virtues, industriously imitated the actions of one who was mad, so that he might be thought to be possessed and, pitied by those who saw him, released unharmed. But their king, unaware of his pretense, truly expelled him as if he were insane, excluding him from entering his house as a madman. Nor does the truth of allegory depart from the shadow of history. For the Lord, to heal the eyes of the hearts of those who could not see the glory of His divinity, applied the ointment of human humility; but some of the impious accused Him in His sufferings as if He were a man of frailty, in His virtues as if demoniac, and abhorred Him as performing miracles by a power contrary to God. Finally, as the Gospel recounts, we learn not only what was thought by adversaries, but also what was thought and said by His own, who were not yet strengthened in full faith: "And they came to the house, and again a crowd gathered, so that they could not even eat bread. And when His family heard it, they went out to seize Him; for they said, 'He is out of his mind'" (Mark 3). This His family did, still carnal in their perception, due to the immeasurable quantity and quality of His growing virtues; but look also at what the others did: "And the scribes who came down from Jerusalem said, 'He has Beelzebub, and by the prince of demons He casts out demons'" (Matthew 12; Mark 3). But even after His resurrection and ascension into heaven, as the apostles preached the truth of the Gospel, some deranged people ridiculed and rejected it as madness. Hence it is that the one who is debtor to both the wise and the foolish, bearing witness to Christ, heard: "You are insane, Paul; much learning is driving you mad" (Acts 26). Consequently, all who accuse Christ of madness and mania, it is no wonder if, by contemptuously rejecting Him, they furiously exclude Him from the house of their minds. — Commentary on Samuel