In 2 Cor 11:18-27, Paul immediately follows by listing his sufferings—the 'foolish' boasting he introduced in 11:17.

In 2 Cor 11:10, Paul asserts his boasting is true and cannot be stopped—complementing the 'foolish' qualification in 11:17.

In 2 Cor 11:21, Paul repeats 'I speak foolishly' and continues boasting—directly echoing 11:17's language.

In 2 Cor 12:11, Paul says 'I have become a fool in glorying'—a direct reference back to his foolish boasting in chapter 11.

In 2 Cor 5:13, Paul defends appearing 'beside ourselves' as for God—parallels his 'foolish' boasting as a necessary strategy.

In 1 Corinthians 7:6, Paul introduces a concession with similar language—'not as a command'—paralleling his disclaimer of speaking without the Lord's authority.

In 1 Corinthians 7:12, Paul again distinguishes his own authority from the Lord's, echoing the same disclaimer as here.

In 1 Cor 7:25, Paul similarly disclaims speaking by divine command—'not after the Lord'—mirroring his disclaimer of foolish boasting here.

In Philippians 3:3-6, Paul also lists his Jewish credentials, but there he counts them as loss, while here he boasts 'foolishly' to counter false apostles.