תְּחַטְּאֵ֣נִי בְאֵז֣וֹב וְאֶטְהָ֑ר תְּ֝כַבְּסֵ֗נִי וּמִשֶּׁ֥לֶג אַלְבִּֽין׃
Esconde tu rostro de mis pecados, Y borra todas mis maldades.
Rashi on Psalms
Purify me with a hyssop As one purifies the “mezora” and the one who became unclean through contact with a corpse.