Berean Study Bible
Some of the wise will fall, so that they may be refined, purified, and made spotless until the time of the end, for it will still come at the appointed time.

King James Bible
And some of them of understanding shall fall, to try them, and to purge, and to make them white, even to the time of the end: because it is yet for a time appointed.

American Standard Version
And some of them that are wise shall fall, to refine them, and to purify, and to make them white, even to the time of the end; because it is yet for the time appointed.

Darby Bible Translation
And [some] of the wise shall fall, to try them, and to purge and to make them white, to the time of the end: for it shall yet be for the time appointed.

Douay-Rheims Bible
And some of the learned shall fall, that they may be tried, and may be chosen, and made white even to the appointed time, because yet there shall be another time.

English Revised Version
And some of them that be wise shall fall, to refine them, and to purify, and to make them white, even to the time of the end: because it is yet for the time appointed.

Young's Literal Translation
And some of the teachers do stumble for refining by them, and for purifying, and for making white -- till the end of the time, for it is yet for a time appointed.