וצוה הכהן ולקח למטהר שתי צפרים חיות טהורות ועץ ארז ושני תולעת ואזוב... ושחט את הצפור האחת אל כלי חרש על מים חיים
Horav Nosson Gestetner, zl, observes that the taharas, purification process, of the metzora involves the four yesodos, foundations, types of Creation: domeim, inanimate; tzomeiach, growing vegetation; chai, living creature; medaber, human who has the power of speech. The water and earthenware vessel are domemim, inanimate objects. The cedar wood and hyssop represent the tzomeiach, growing vegetation. The bird and crimson wool dyed from the blood of a worm, correspond to chai, living creatures. The Kohen who performs the purification is the medaber, symbolizes the human speaking creature. The lesson for us is straightforward: one who speaks lashon hora defiles every…