In 2 Corinthians 11:12, Paul explains why he continues his free preaching—to cut off false apostles' claims, directly supporting his boast in v10.

2 Corinthians 11:31 has Paul declare God knows he is not lying—a direct parallel oath to the truth-of-Christ boast in 2 Cor 11:10.

2 Corinthians 11:11 immediately follows, defending Paul's love while he boasts—linking his truth claim to his affection.

In 2 Corinthians 11:17, Paul clarifies his foolish boasting is not from the Lord, contrasting with the truth-based boast in v10.

In 2 Corinthians 11:16, Paul shifts to 'foolish boasting'—a different kind of boast than the confident one in v10.

2 Corinthians 1:23 has Paul call God as witness to his sincerity, mirroring the truth-in-Christ assertion of 2 Cor 11:10.

2 Corinthians 12:19 shows Paul insisting he speaks in the sight of God, echoing the same reliance on Christ's truth from 2 Cor 11:10.

2 Corinthians 12:16 returns to the same topic: Paul did not burden the Corinthians, reinforcing his boast in 11:10.

In 2 Corinthians 10:15, Paul says he does not boast in others' labors—consistent with the proper boasting he defends in v10.

Romans 1:9 has Paul call God as his witness, a similar invocation of divine truth as the boast in 2 Cor 11:10.

Romans 9:1 has Paul say 'I am speaking the truth in Christ—I am not lying,' a nearly identical oath to 2 Cor 11:10.

In 1 Corinthians 9:15-18, Paul explains his refusal of payment to maintain his boast in preaching free—the same boast referenced in v10.

Galatians 1:20 has Paul swear before God that he does not lie, paralleling the truth-of-Christ assertion in 2 Cor 11:10.

1 Thessalonians 2:5 has Paul invoke God as witness to his motives, mirroring the truth-in-Christ claim of 2 Cor 11:10.

2 Kings 5:16 records Elisha's refusal to accept gifts, directly paralleling Paul's boast of not taking support for his ministry.