Rom.15.18  For I will not venture to speak of anything except what Christ has wrought through me to win obedience from the Gentiles, by word and deed,
1Cor.9.19  For though I am free from all men, I have made myself a slave to all, that I might win the more.
1Cor.9.20  To the Jews I became as a Jew, in order to win Jews; to those under the law I became as one under the law--though not being myself under the law--that I might win those under the law.
1Cor.9.21  To those outside the law I became as one outside the law--not being without law toward God but under the law of Christ--that I might win those outside the law.
1Cor.9.22  To the weak I became weak, that I might win the weak. I have become all things to all men, that I might by all means save some.
2John.1.8  Look to yourselves, that you may not lose what you have worked for, but may win a full reward.