Esther 4:3; Esther 4:16

Esther 4:3

3 As the king's order was posted in every province, there was loud lament among the Jews - fasting, weeping, wailing. And most of them stretched out on sackcloth and ashes.

Esther 4:16

16 "Go and get all the Jews living in Susa together. Fast for me. Don't eat or drink for three days, either day or night. I and my maids will fast with you. If you will do this, I'll go to the king, even though it's forbidden. If I die, I die."