This is one of the ultimate "it's not about me" passages. Becoming weak for the weak's sake??? Why would I do that...I'm a man?!? Paul had such a glorious and expansive view of the Gospel that he was willing to subject himself to all kinds of uncomfort and changes in order to allow the Gospel to be furthered. That's powerful.

1 Corinthians 9:20, 1 Corinthians 9:21 and 1 Corinthians 9:22-23