'Chance' in the Bible

And she goeth and cometh and gathereth in a field after the reapers, and her chance happeneth -- the portion of the field is Boaz's who is of the family of Elimelech.

And it was in my mind to give you the chance of taking it, with the approval of those seated here and of the responsible men of my people. If you are ready to do what it is right for a relation to do, then do it: but if you will not do it, say so to me now; for there is no one who has the right to do it but you, and after you myself. And he said, I will do it.