Berean Study Bible
the Jews bound themselves to establish the custom that they and their descendants and all who join them should not fail to celebrate these two days at the appointed time each and every year, according to their regulation.

King James Bible
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;

American Standard Version
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;

Darby Bible Translation
the Jews ordained and took upon them, and upon their seed, and upon all such as joined themselves to them, so that it should not fail, that they would observe these two days according to their writing and according to their fixed time, every year;

Douay-Rheims Bible
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.

English Revised 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 the writing thereof, and according to the appointed time thereof, every year;

Young's Literal Translation
the Jews have established and received upon them, and upon their seed, and upon all those joined unto them, and it doth not pass away, to be keeping these two days according to their writing, and according to their season, in every year and year;