ESV: and some of the wise shall stumble, so that they may be refined, purified, and made white, until the time of the end, for it still awaits the appointed time.
NIV: Some of the wise will stumble, 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.
NASB: And some of those who have insight will fall, to refine, purge, and cleanse them until the end time; because it is still to come at the appointed time.
CSB: Some of those who have insight will fall so that they may be refined, purified, and cleansed until the time of the end, for it will still come at the appointed time.
NLT: And some of the wise will fall victim to persecution. In this way, they will be refined and cleansed and made pure until the time of the end, for the appointed time is still to come.
KJV: 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.
NKJV: And some of those of understanding shall fall, to refine them, purify them, and make them white, until the time of the end; because it is still for the appointed time.