כִּֽי־בְחַנְתָּ֥נוּ אֱלֹהִ֑ים צְ֝רַפְתָּ֗נוּ כִּצְרָף־כָּֽסֶף׃
Nur geprüft hast du uns, Gott, uns geläutert, wie man Silber läutert.
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.