Esther 9:31

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

Esther 4:3

And in every province, wherever the king's commandment and his decree came, there was great mourning among the Jews, and fasting, and weeping, and wailing, and many lay in sackcloth and ashes.

Esther 4:16

Go, gather together all the Jews that are present in Shushan, and fast ye for me, and neither eat nor drink three days, night or day. I also and my maidens will fast in like manner. And so I will go in to the king, which is not acc

Jonah 3:2-9

Arise, go to Nineveh, that great city, and preach to it the preaching that I bid thee.

Treasury of Scripture Knowledge

Summary

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

The fastings

Bible References

And for their seed

Esther 9:27
the Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves to them, so that it should not fail, that they would keep these two days according to the writing of it, and according to the appoin

The fastings

Esther 4:3
And in every province, wherever the king's commandment and his decree came, there was great mourning among the Jews, and fasting, and weeping, and wailing, and many lay in sackcloth and ashes.
Jonah 3:2
Arise, go to Nineveh, that great city, and preach to it the preaching that I bid thee.