1 Corinthians 9:19, 22
1 Corinthians 9:19 AMP
For though I am free from all men, I have made myself a slave to everyone, so that I may win more [for Christ].
1 Corinthians 9:22 AMP
To the weak I became [as the] weak, to win the weak. I have become all things to all men, so that I may by all means [in any and every way] save some [by leading them to faith in Jesus Christ].