וְעֶרְוַ֨ת אֲח֧וֹת אִמְּךָ֛ וַאֲח֥וֹת אָבִ֖יךָ לֹ֣א תְגַלֵּ֑ה כִּ֧י אֶת־שְׁאֵר֛וֹ הֶעֱרָ֖ה עֲוֺנָ֥ם יִשָּֽׂאוּ׃
At ang kahubaran ng kapatid na babae ng iyong ina at ng kapatid na babae ng iyong ama ay huwag mong ilalantad, sapagkat inilantad niya ang kanyang malapit na kamag-anak; papasanin nila ang kanilang kasalanan.
Rashi
'וערות אחות אמך וגו [AND THOU SHALT NOT UNCOVER] THE NAKEDNESS OF THY MOTHERS SISTER [NOR OF THY FATHER’S SISTER] — Scripture repeats the prohibition regarding these (although they had been mentioned already in Leviticus 18:12, 13) to tell us that one is prohibited in respect to them, both in regard to one's father's or mother's sister on their father's side, and in regard to their sisters on their mother's side. But as regards a marriage being forbidden with the wife of one's father’s brother (cf. Leviticus 18:14) the prohibition (i.e. the איסור ערוה מדאורייתא) applies only to the wife of the brother of one's father when he is the father’s brother on the father’s side (i. e. when both have one father) (cf. Yevamot 54b).
Rav Hirsch
V. 19 ist nur eine Wiederholung der bereits Kap. 18, 12 u. 13 gegebenen Verbote. Durch die Wiederholung ist das Verbot auf jede Schwester der Eltern erstreckt, selbst auf deren Halbschwestern von mütterlicher Seite, während bei dem dort und hier folgenden Verbot der דודתו ,אשת אחי אביו, nur אשת אחי אביו מן האב, nur die Frau des Vaterbruders von väterlicher Seite ערוה, dessen von mütterlicher Seite jedoch שניה ist. דוד heißt nur der Vaterbruder von väterlicher Seite (Jebamot 54b).
Chizkuni
כי את שארו הערה, “for he has made naked his nearest kin,” if he had raped her.