GOD'S WORD® Translation
They couldn't celebrate it at the regular time because not enough priests had performed the ceremonies to make themselves holy and the people hadn't gathered in Jerusalem.

American Standard Version
For they could not keep it at that time, because the priests had not sanctified themselves in sufficient number, neither had the people gathered themselves together to Jerusalem.

Berean Study Bible
since they had been unable to observe it at the regular time, because not enough priests had consecrated themselves and the people had not been gathered in Jerusalem.

Douay-Rheims Bible
For they could not keep it in its time; because there were not priests enough sanctified, and the people was not as yet gathered together to Jerusalem.

English Revised Version
For they could not keep it at that time, because the priests had not sanctified themselves in sufficient number, neither had the people gathered themselves together to Jerusalem.

King James Bible
For they could not keep it at that time, because the priests had not sanctified themselves sufficiently, neither had the people gathered themselves together to Jerusalem.

World English Bible
For they could not keep it at that time, because the priests had not sanctified themselves in sufficient number, neither had the people gathered themselves together to Jerusalem.

Young's Literal Translation
for they have not been able to make it at that time, for the priests have not sanctified themselves sufficiently, and the people have not been gathered to Jerusalem.

2 Chronicles 30:3 Additional Translations ...