'Purpose' in the Bible

Again, it was said, Whoever puts away his wife has to give her a statement in writing for this purpose:

But their worship is to no purpose, while they give as their teaching the rules of men.

Then the kingdom of heaven will be like ten virgins, the friends of the bride, who took their lights, and went out with the purpose of meeting the husband.

But when the disciples saw it they were angry, saying, To what purpose is this waste?

Now when it was morning, all the chief priests and those in authority took thought together with the purpose of putting Jesus to death.