In Acts 26:11, Paul recounts his former raging fury in persecution, contrasting with his present claim of rational sanity.

Acts 17:32 records mocking of Paul's message; here Festus calls him mad. Both show rejection of Paul's testimony.

In John 8:49, Jesus denies having a demon — echoing Paul's denial of madness here as both speak truth under accusation.

1 Peter 2:21-23 describes Christ's gentle response to reviling — Paul mirrors that here by not reacting harshly to Festus.

1 Peter 3:9 commands not repaying reviling with reviling — Paul exemplifies this by not retaliating against Festus.

Hosea 9:7 describes a prophet being called mad, mirroring Festus's accusation that Paul is mad. Connects Paul to prophetic suffering.

In 1 Corinthians 2:14, the natural person sees spiritual truth as folly — explaining why Festus calls Paul mad for speaking rationally.

In 2 Corinthians 5:13, Paul reflects that being 'beside ourselves' is for God — echoing his defense of sanity in testimony.

In 2 Timothy 1:7, the spirit of self‑control (sound mind) grounds Paul's bold rationality before Festus.

Titus 2:8 emphasizes sound speech that cannot be condemned, paralleling Paul's claim of speaking true and rational words under accusation.