Purim in the Bible

Therefore they called these days Purim after the name of Pur. Therefore for all the words of this letter, and of that which they had seen concerning this matter, and which had come unto them,

And that these days should be remembered and kept throughout every generation, every family, every province, and every city; and that these days of Purim should not fall into disuse among the Jews, nor the memory of them perish from their descendants.

Then Esther the queen, the daughter of Abihail, and Mordecai the Jew, wrote with all authority, to confirm this second letter about Purim.

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 descendants, concerning the matters of the fastings and their lamentations.

And the decree of Esther confirmed these matters of Purim; and it was written in the book.