In 2 Corinthians 9:4, Paul worries his boast might be embarrassed — this verse directly continues the same collection context.

In 8:8, Paul uses others' zeal to test genuine love—this explains why he boasts about their readiness to stir up the Macedonians.

In 8:10, Paul notes they began the collection last year—the same basis for his boast that they have been ready since then.

In 8:24, Paul urges them to prove his boasting about them is true—directly connected to the boast he makes in 9:2.

In 2 Corinthians 1:14, Paul calls the Corinthians his boast — the same pride in them that he expresses here about their generosity.

In 2 Corinthians 7:4, Paul boasts greatly about the Corinthians — reinforcing the same confidence in their character.

In 2 Corinthians 7:14, Paul confirms his boasting about them was true — directly backing up the boast he makes here.

In 2 Corinthians 11:10, Paul boasts unashamedly about Achaia — extending the same regional pride from earlier.

In 1 Corinthians 16:15, Stephanas's household are first converts in Achaia devoted to serving saints—showing Achaia's early readiness.

In 1 Thessalonians 1:7, the Thessalonians became an example to believers in Macedonia and Achaia—mirroring how the Corinthians' zeal stirs up Macedonia.