Daniel 11:35 AMPC

[35] And some of those who are wise, prudent, and understanding shall be weakened and fall, [thus, then, the insincere among the people will lose courage and become deserters. It will be a test] to refine, to purify, and to make those among [God's people] white, even to the time of the end, because it is yet for the time [God] appointed.