Ephesians 6:19 is the preceding request for boldness in proclamation, which Paul then applies to himself as an ambassador in chains.

In Ephesians 4:1, Paul again identifies as a prisoner for the Lord, linking his chains to his apostolic calling.

In Ephesians 3:1, Paul calls himself a prisoner for Christ on behalf of Gentiles, reinforcing his identity as a chained ambassador.

Matthew 10:28 gives the reason to be fearless despite chains: only God can destroy the soul, not human persecutors.

In 2 Timothy 2:9, Paul similarly describes being bound in chains for the gospel, yet the word is not bound — echoing his role as ambassador in chains.

In 2 Timothy 1:16, Onesiphorus is not ashamed of Paul’s chains, showing a faithful response to his imprisonment.

1 Thessalonians 2:2 recalls Paul's boldness after suffering in Philippi — a precedent for the same courage he asks for as an ambassador in chains.

Colossians 4:4 parallels Paul's prison prayer for clarity — the same 'ought to speak' language, showing his consistent request for bold proclamation.

Philippians 1:20 expresses Paul's hope for bold courage to honor Christ even in chains — mirroring the boldness he seeks here.

In Philippians 1:14, Paul’s imprisonment emboldens other believers to speak boldly, adding the effect of his chains.

In Philippians 1:13, Paul’s imprisonment is known to be for Christ, echoing the same cause for his chains.

In Philippians 1:7, Paul links his imprisonment to the defense and confirmation of the gospel, showing the purpose behind his chains.

In 2 Corinthians 5:20, Paul uses the same 'ambassador' image, defining his role as Christ's representative calling for reconciliation.

Acts 28:31 depicts Paul boldly preaching from Roman custody — exactly the situation he prays for here, showing his request answered.

In Acts 28:20, Paul says he is wearing a chain for the hope of Israel, directly parallel to his chains for the gospel.

In Acts 26:29, Paul mentions his chains and wishes others could be like him except for them, highlighting his physical bondage.

2 Corinthians 11:23 catalogues Paul's imprisonments and sufferings—directly illustrating the 'chains' he mentions here as an ambassador.

Mark 13:11 promises the Holy Spirit will speak through believers on trial; Paul's boldness in chains echoes that promise.

Colossians 4:3 is almost identical: Paul asks prayer to declare the mystery while in prison—a close parallel to this request for boldness.

Acts 13:46 has Paul speaking boldly to the Jews; same boldness he now asks prayer for in chains.

Acts 18:9 commands Paul to speak boldly without fear; this verse echoes that command as he prays for boldness in chains.

In 2 Corinthians 3:12, Paul ties boldness to hope in the new covenant—directly reinforcing the boldness he seeks as an ambassador in chains.

Acts 9:27 describes Paul's early bold preaching in Damascus; here he continues that boldness even in chains.

John 7:26 shows Jesus speaking openly despite threats; Paul's bold speech in chains mirrors this fearless witness.

2 Corinthians 7:4 shows Paul overflowing with joy and confidence despite affliction, echoing the attitude behind his request for boldness while imprisoned.

Jeremiah 36:5 shows the prophet banned from the temple — a restriction similar to Paul's chains, both finding ways to speak God's word.

2 Thessalonians 3:1 also requests prayer for the word to spread quickly—the same concern for gospel proclamation, though without mention of chains.

Philemon 1:10 shows Paul in prison as a spiritual father to Onesimus, another context of his chains and boldness for the gospel.

Hebrews 10:34 commends compassion for prisoners—Paul himself is in chains, so this references the kind of support he might receive.