Ephesians 3:1 identifies Paul as a prisoner for Gentiles, providing the context for the sufferings he mentions here.

In Isaiah 40:31, those who wait on the Lord will not faint — this promise undergirds Paul's call not to faint, showing the source of renewed strength.

Hebrews 12:3-5 explicitly urges not to lose heart, using the same phrase, linking endurance to Christ's example and divine discipline.

Colossians 1:24 has Paul rejoicing in suffering for the church's sake, a direct parallel to sufferings being the readers' glory.

Philippians 1:12-14 shows Paul's chains advancing the gospel and emboldening others, illustrating how his suffering becomes their gain.

In Galatians 6:9, Paul urges not to be weary in doing good — the same verb 'faint' appears, linking perseverance in suffering with perseverance in good works.

2 Corinthians 1:6 echoes that Paul's distress serves for others' comfort and salvation, directly paralleling the logic of suffering for their glory.

In Acts 14:22, Paul himself taught that tribulations are the path to the kingdom — his own sufferings are therefore not a cause for despair but part of that pattern.

In 2 Corinthians 4:1, Paul uses the exact phrase 'we do not lose heart' about ministry — directly echoing the same resolve despite hardship.

In Acts 20:24, Paul counts his life worthless to finish his course — reinforcing the same attitude of embracing suffering for others' benefit.

Philippians 1:14 shows Paul's imprisonment emboldened others — mirroring how his suffering here becomes the believers' glory.

1 Thessalonians 3:3 says believers should not be moved by afflictions — directly reinforcing Paul's plea here not to lose heart because of his trials.

In 2 Timothy 1:8, Paul urges Timothy not to be ashamed of his imprisonment — echoing the same call to not lose heart over suffering for the gospel.

In 2 Timothy 2:10, Paul endures everything for the elect's salvation — mirrors his suffering in Ephesians for the Gentiles' glory.

In 1 Peter 4:16, suffering as a Christian brings glory to God — parallels Paul's suffering bringing glory to the Gentiles.

1 Thessalonians 3:2-4 encourages believers not to be unsettled by trials, similar to Paul's plea not to lose heart over his sufferings.

In 2 Thessalonians 3:13, Paul similarly exhorts not to grow weary in doing good—parallel call to perseverance amid trials.

In Deuteronomy 20:3, the command not to let your heart faint in battle parallels this exhortation not to faint at tribulations — both urge courage under pressure.

Romans 5:3 shows suffering produces endurance — a reason not to lose heart, though Paul's focus there is personal growth rather than others' glory.

In Zephaniah 3:16, the command 'let not your hands be slack' is a similar call to avoid discouragement — here applied to Zion, Paul urges the same.