In 2 Corinthians 12:7, Paul reveals the thorn given to keep him humble — directly explaining why he refrains from boasting in 12:6.

In 2 Cor 11:16, Paul boasts as a fool — contrasting with his refusal to boast here even truthfully.

In 2 Cor 10:8, Paul mentions his God-given authority with restraint — paralleling his care here not to overboast.

In 2 Corinthians 11:18, Paul admits boasting according to the flesh — the very thing he refrains from in the context of 12:6, showing consistency in his handling of boasting.

In 2 Corinthians 11:31, Paul calls God as witness to his truthfulness — reinforcing his caution in 12:6 about not boasting beyond what is true.

In Romans 15:18, Paul only boasts in what Christ accomplished — directly parallel to his restraint in 12:6 from boasting about personal revelations.

In 1 Corinthians 4:6, Paul warns against being puffed up — the very attitude he avoids in 12:6 by not boasting about himself.

In Romans 9:1, Paul asserts his honesty with an oath — similar to his careful truthfulness in 12:6, but 12:6 focuses on avoiding overestimation.

In 1 Cor 3:5, Paul describes himself as a servant — echoing his humility here in not taking excess credit.

In 1 Cor 3:10, Paul laid the church's foundation — a significant role he downplays here by not claiming more than seen.