כִּֽי־בְחַנְתָּ֥נוּ אֱלֹהִ֑ים צְ֝רַפְתָּ֗נוּ כִּצְרָף־כָּֽסֶף׃
Ибо Ты, Боже, испытал нас; Ты очистил нас, как серебро очищено.
Rashi on Psalms
You refined us to remove the dross from us when we repent before You, as they refine silver to remove its dross.