Esther 4:15-17

Then Esther said in reply to Mordecai, ‘Go, gather all the Jews to be found in Susa, and hold a fast on my behalf, and neither eat nor drink for three days, night or day. I and my maids will also fast as you do. After that I will go to the king, though it is against the law; and if I perish, I perish.’ Mordecai then went away and did everything as Esther had ordered him.