In Matthew 23:8, Jesus declares all believers are brothers, grounding Paul's call to see Onesimus as a brother despite his former status.

In 1 Timothy 6:2, Paul instructs slaves with believing masters to serve them as brothers, directly paralleling the brotherhood he urges for Onesimus and Philemon.

In John 15:15, Jesus elevates disciples from servants to friends — a direct parallel to Onesimus being no longer a slave but a brother.

In 1 Corinthians 7:22, Paul says a slave called in the Lord is a freedman of Christ — a direct parallel to Onesimus being no longer a slave but a brother in the Lord.

In Acts 9:17, Ananias calls Saul 'brother' after conversion, illustrating the new familial bond in Christ that Paul applies to Onesimus.

In Ephesians 6:5-7, slaves are commanded to obey earthly masters sincerely as to Christ — a different angle from Paul's transformation of Onesimus into a brother.

Colossians 3:22 instructs bondservants to obey in everything — a parallel duty emphasis, while Philemon highlights the new brotherly status.