Esther 9:31
to confirm these days of Purim, in their time appointed, according as Mordecai the Jew and Esther the queen had ordained concerning them: like as they upon their soul and upon their seed had confirmed the acts of the fasting and of her complaint.
Esther 4:3
And in all lands and places, as far as the king's word and commandment extended, there was great lamentation among the Jews and many fasted, wept, mourned and lay in sackcloth and in ashes.
Esther 4:16
'Go thou thy way then, and gather together all the Jews that are found at Susa, and fast ye for me, that ye eat not and drink not in three days, neither day nor night. I and my damsels will fast likewise, and so will I go in to the king contrary to the commandment: if I perish, I perish.'"
Jonah 3:2-9
"Up, and get thee to Nineveh that great city, and preach unto them the preaching which I bade thee."