Acts 23:18
So he took him, and brought him to the chief captain, and said, Paul the prisoner called me unto him, and prayed me to bring this young man unto thee, who hath something to say unto thee.
Cross-reference
Ephesians 3:1
Parallel
Ephesians 3:1 shows Paul willingly identifying as a prisoner for Christ, giving theological depth to his literal chains in Acts.
Ephesians 4:1
Parallel
Ephesians 4:1 repeats the prisoner motif, now urging a worthy walk — linking Paul's imprisonment to Christian conduct.
Philemon 1:9
Parallel
Philemon 1:9 adds Paul's age and love as reasons for appeal, framing his imprisonment as an affectionate plea.