Esther 9:25-27

New International Version

²⁵ But when the plot came to the king’s attention,^[a] he issued written orders that the evil scheme Haman had devised against the Jews should come back onto his own head,^(A) and that he and his sons should be impaled^(B) on poles.^{(C) 26} (Therefore these days were called Purim, from the word pur.^(D)) Because of everything written in this letter and because of what they had seen and what had happened to them, ²⁷ the Jews took it on themselves to establish the custom that they and their descendants and all who join them should without fail observe these two days every year, in the way prescribed and at the time appointed.