King James Version
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;New International Version
the Jews took it upon 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.Catholic Public Domain Version
And whatever they suffered, and whatever was altered afterwards, the Jews received for themselves and their offspring and for all who were willing to be joined to their religion, so that none would be permitted to transgress the solemnity of these two days, to which the writing testifies, and which certain times require, as the years continually succeed one another