'Chance' in the Bible

In those days, while Mordecai was seated at the king's doorway, two of the king's servants, Bigthan and Teresh, keepers of the door, being angry, were looking for a chance to make an attack on King Ahasuerus.

In the first month, the month Nisan, in the twelfth year of King Ahasuerus, from day to day and from month to month they went on looking for a sign given by Pur (that is chance) before Haman, till the sign came out for the thirteenth day of the twelfth month, the month Adar.

Because Haman, the son of Hammedatha the Agagite, the hater of all the Jews, had made designs for their destruction, attempting to get a decision by Pur (that is, chance) with a view to putting an end to them and cutting them off;