1 Corinthians 9:15
But I have used none of these things: neither have I written these things, that it should be so done unto me: for it were better for me to die, than that any man should make my glorying void.
Cross-reference
In 1 Corinthians 9:12, Paul says they did not use this right — the same point he reinforces here about not using his right.
In 1 Corinthians 4:12, Paul labors with his own hands — the reason he can boast about not using support.
In Acts 20:34, Paul's hands provided for his needs — directly parallel to his claim of not using his right.
In 2 Corinthians 11:9-12, Paul boasts that no one will stop him from this boasting about not being burdensome, directly echoing his determination.
In 1 Thessalonians 2:9, Paul labored night and day to not be a burden — same practice underlying his boast.
In 2 Thessalonians 3:8, Paul cites his labor to avoid being a burden, reinforcing his same policy of declining support to preserve his boast.
In Numbers 16:15, Moses declares he has taken nothing from the people—directly parallel to Paul's claim of not being burdensome.
In Acts 20:33, Paul demonstrates the same refusal to take money, providing a practical example of the principle behind his boast in 1 Cor 9:15.
In 2 Corinthians 11:10, Paul reaffirms the same boast in not taking support from Achaia, directly echoing and reinforcing 1 Cor 9:15.
In 2 Corinthians 12:13-18, Paul defends his policy of not being burdensome, consistent with his refusal to accept support.
In Genesis 14:24, Abram refuses spoil to maintain integrity—a parallel refusal of rightful goods to avoid compromising a testimony.
In Ezra 8:22, Ezra refuses a military escort to avoid shaming his boast in God—similar reasoning to Paul's refusal for his boast.