III Maccabees 6:36

36 They made a public ordinance to commemorate these things for generations to come, as long as they should be sojourners. They thus established these days as days of mirth, not for the purpose of drinking or luxury, but because God had saved them.

III Maccabees 6:36 In-Context

34 Those who had marked them out as for death and for carrion, and had registered them with joy, howled aloud, and were clothed with shame, and had the fire of their rage ingloriously put out.
35 But the Jews, as we just said, instituted a dance, and then gave themselves up to feasting, glad thanksgivings, and psalms.
36 They made a public ordinance to commemorate these things for generations to come, as long as they should be sojourners. They thus established these days as days of mirth, not for the purpose of drinking or luxury, but because God had saved them.
37 They requested the king to send them back to their homes.
38 They were being enrolled from the twenty-fifth of Pachon to the fourth of Epiphi, a period of forty days: the measures taken for their destruction lasted from the fifth of Epiphi till the seventh, that is, three days.

The Brenton translation of the Septuagint is in the public domain.