'Means' in the Bible

But take heed lest by any means this liberty of yours become a stumblingblock to the weak.

To the weak I became weak, that I might gain the weak: I am become all things to all men, that I may by all means save some.

but I buffet my body, and bring it into bondage: lest by any means, after that I have preached to others, I myself should be rejected.