Acts 26:11 shows Paul's own former 'raging fury' — he once persecuted, now is accused of madness for the message he fought.

In Acts 25:20, Festus is already perplexed about Paul's case, leading to his frustrated outburst here calling Paul mad.

Acts 12:15 uses the same Greek word (mainomai) for 'you are mad' — a direct verbal parallel to Festus' accusation here.

Acts 24:27 introduces Festus as Felix's successor, providing the backstory for his role in Paul's trial here.

In Acts 25:19, Festus describes the dispute about Jesus; here he reacts to that same claim with a charge of madness.

In Acts 17:32, some mock Paul's resurrection message — similar to Festus' accusation of madness in Acts 26:24.

In Acts 24:25, Felix is alarmed and dismisses Paul — a different but similarly negative response to Paul's testimony as Festus' outburst in Acts 26:24.

In 2 Corinthians 5:13, Paul acknowledges being 'beside ourselves' for God, directly echoing Festus's accusation — his apparent madness is actually devotion to God.

In 2 Kings 9:11, the prophet's words are dismissed as the talk of a madman — similar to how Festus dismisses Paul's testimony here.

In 1 Corinthians 4:10, Paul calls himself a fool for Christ's sake, embracing the very label Festus uses — being considered a fool is part of the apostolic calling.

In 1 Corinthians 2:14, Paul says the natural person cannot accept spiritual things and considers them folly — exactly Festus's reaction, as he sees Paul's testimony as madness.

In 1 Corinthians 1:23, Paul explains that preaching Christ crucified is considered foolishness to the world, which is why Festus calls him mad — the message itself appears insane to outsiders.

In Mark 3:21, Jesus' own family thought He was out of His mind — Paul now faces the same charge from Festus.

Hosea 9:7 says the prophet is considered a fool and mad — exactly Paul's experience when Festus calls him mad here.

Jeremiah 29:26 describes those who 'prophesy' being considered madmen — Paul's testimony is similarly dismissed as madness.

In John 7:20, Jesus faces a similar accusation of being demon-possessed — paralleling Festus' charge of madness against Paul here.

In Matthew 11:18, John the Baptist is accused of having a demon — a parallel accusation of madness/possession against a preacher, showing a pattern of rejecting God's messengers.