'Refined' in the Bible

And [even] some of those {who have insight} will fall [in order for] them to be refined by it, and to be purified and cleansed until the time of [the] end, for the appointed time [is] still to come.

Many will be purified and will be cleansed and will be refined, but [the] wicked will act wickedly {and none of the wicked will understand}, but {those who have insight} will understand.