'Chance' in the Bible

Were you a slave when you were called? Do not let that bother you. Of course, if you have a chance to become free, take advantage of the opportunity.

And that which thou sowest, thou sowest not that body that shall be, but bare grain, it may chance of wheat, or of some other grain:

But as for Apollos, the brother, I had a great desire for him to come to you with the brothers, but it was not his pleasure to come now; but he will come when he has a chance.