'Sake' in the Bible

For we don't preach ourselves, but Christ Jesus as Lord, and ourselves as your servants for Jesus' sake;

For we who live are always delivered to death for Jesus' sake, that the life also of Jesus may be revealed in our mortal flesh.

Therefore I take pleasure in weaknesses, in injuries, in necessities, in persecutions, in distresses, for Christ's sake. For when I am weak, then am I strong.