'Three' in the Bible

Go, gather together all the Jews that are found in Shushan, and fast for me, and neither eat nor drink three days, night or day: I also and my maidens will fast likewise, and so will I go in unto the king, which is not according to the law; and if I perish, I perish.

Then were the king's scribes called at that time, in the third month, that is, the month Sivan, on the three and twentieth day thereof; and it was written according to all that Mordecai commanded, to the Jews, and to the satraps, and the governors, and the princes of the provinces which are from India even to Ethiopia, a hundred and twenty-seven provinces, to every province according to the writing thereof, and to every people according to their language, and to the Jews according to their writing and according to their language.

And the Jews that were in Shushan gathered themselves together on the fourteenth day also of the month Adar, and slew three hundred men at Shushan; but they laid not their hand on the prey.