The person recovering from the biblical disease tzara'at has to bring, in addition to their offering, a piece of cedar wood and a piece of hyssop. The Ohev Yisrael tells us that these items are symbolic for the two character traits we need in order to do true teshuvah: pride and humility.

Transcript and source sheet: https://mechonhadar.s3.amazonaws.com/mh_torah_source_sheets/WeissTisch5-4.pdf. 

“Mitteler Rebbe,” "Ach L'elokim," and “Keyli Ata” from RAZA Kapelya (2023) by Chana Raskin. Produced by Joey Weisenberg and Chana Raskin for Hadar’s Rising Song Records.