Tanach · Rishonim on Tanach · Ibn Ezra · Torah
Ibn Ezra on Leviticus 15:1/אבן עזרא על ויקרא ט״ו:א׳
אוידבר יי אל משה ואל אהרן. כי הכהנים יפרישו בין זבה לנדה כאשר אחז"ל בין דם לדם ועתה יחל לבאר הטמאים מדבר נסתר כי הצרעת נגע גלוי:
1AND THE LORD SPOKE UNTO MOSES AND TO AARON. For the kohanim distinguish between a woman who has an issue (zavah) and one who menstruates (niddah).1 Compare the Rabbinic interpretation on between blood and blood2 then the kohen shall decide the aforementioned. The Rabbis interpret between blood and blood as meaning between “between menstrual blood and blood of an issue and blood of childbirth (Sifre, on Deut. 17:8).” (Deut. 17:8). Scripture now begins to deal with those who become unclean from a hidden source,3 for until now it dealt with leprosy which is a visible plague.