NASB
"the Jews established and made a custom for themselves and for their descendants and for all those who allied themselves with them, so that they would not fail to celebrate these two days according to their regulation and according to their appointed time annually."
— Esther 9:27, NASB
“The Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so as it should not fail, that they would keep these two days according to their writing, and according to their appointed time every year;”
“the Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so that it should not fail, that they would keep these two days according to the writing thereof, and according to the appointed time thereof, every year; ”
“the Jews established, and imposed on themselves, and on their descendants, and on all those who joined themselves to them, so that it should not fail, that they would keep these two days according to what was written, and according to its appointed time, every year;”
“the Jews established as binding on themselves, their descendants, and all who joined their company that they should observe these two days without fail, just as written and at the appropriate time on an annual basis.”
“And the things that they suffered, and that were afterwards changed, the Jews took upon themselves and their seed, and upon all that had a mind to be joined to their religion, so that it should be lawful for none to pass these days without solemnity: which the writing testifieth, and certain times require, as the years continually succeed one another.”
“The Jews made a rule and gave an undertaking, causing their seed and all those who were joined to them to do the same, so that it might be in force for ever, that they would keep those two days, as ordered in the letter, at the fixed time every year;”
“The Jews ordained, and took upon them, and upon their seed, and upon all such as joined themselves unto them, so as it should not fail, that they would keep these two days according to their writing, and according to their appointed time every year;”
For Haman the son of Hammedatha, the Agagite, the adversary of all the Jews, had schemed against the Jews to destroy them and had cast Pur, that is the lot, to disturb them and destroy them.
But when it came to the king's attention, he commanded by letter that his wicked scheme which he had devised against the Jews, should return on his own head and that he and his sons should be hanged on the gallows.
Therefore they called these days Purim after the name of Pur. And because of the instructions in this letter, both what they had seen in this regard and what had happened to them,
the Jews established and made a custom for themselves and for their descendants and for all those who allied themselves with them, so that they would not fail to celebrate these two days according to their regulation and according to their appointed time annually.
So these days were to be remembered and celebrated throughout every generation, every family, every province and every city; and these days of Purim were not to fail from among the Jews, or their memory fade from their descendants.
Then Queen Esther, daughter of Abihail, with Mordecai the Jew, wrote with full authority to confirm this second letter about Purim.
He sent letters to all the Jews, to the provinces of the kingdom of Ahasuerus, namely, words of peace and truth,