Esther 9:31

to establish these days of Purim, in their seasons, as Mordecai the Jew hath established on them, and Esther the queen, and as they had established on themselves, and on their seed -- matters of the fastings, and of their cry.

Esther 4:3

And in every province and province, the place where the word of the king, even his law, is coming, a great mourning have the Jews, and fasting, and weeping, and lamenting: sackcloth and ashes are spread for many.

Esther 4:16

Go, gather all the Jews who are found in Shushan, and fast for me, and do not eat nor drink three days, by night and by day; also I and my young women do fast likewise, and so I go in unto the king, that is not according to law, and when I have perished -- I have perished.'

Jonah 3:2-9

'Rise, go unto Nineveh, the great city, and proclaim unto it the proclamation that I am speaking unto thee;'

Treasury of Scripture Knowledge

Summary

Esther 9:31

To confirm these days of Purim in their times appointed, according as Mordecai the Jew and Esther the queen had enjoined them, and as they had decreed for themselves and for their seed, the matters of the fastings and their cry.

And for their seed

Esther 9:27

The fastings

Esther 4:3

Jonah 3:2

Bible References

And for their seed

the Jews have established and received upon them, and upon their seed, and upon all those joined unto them, and it doth not pass away, to be keeping these two days according to their writing, and according to their season, in every year and year;

The fastings

'Rise, go unto Nineveh, the great city, and proclaim unto it the proclamation that I am speaking unto thee;'