'Means' in the Bible

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

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

But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.