וַיִּקַּ֨ח עַמְרָ֜ם אֶת־יוֹכֶ֤בֶד דֹּֽדָתוֹ֙ ל֣וֹ לְאִשָּׁ֔ה וַתֵּ֣לֶד ל֔וֹ אֶֽת־אַהֲרֹ֖ן וְאֶת־מֹשֶׁ֑ה וּשְׁנֵי֙ חַיֵּ֣י עַמְרָ֔ם שֶׁ֧בַע וּשְׁלֹשִׁ֛ים וּמְאַ֖ת שָׁנָֽה׃
At kinuha ni Amram si Jocabed, ang kapatid na babae ng kanyang ama, upang maging asawa niya; at ipinanganak nito sa kanya sina Aaron at Moises. At ang mga taon ng buhay ni Amram ay isang daan at tatlumpu't pitong taon.
Rashi
יוכבד דדתו JOCHEBED HIS AUNT — The Targum has: his father’s sister; she was daughter of Levi (cf. Exodus 2:1) and sister of Kohath.
Chizkuni
ויקח עמרם את יוכבד דודתו “Amram married his aunt Yocheved;”The only reason that seems feasible in understanding why G-d agreed to such great people as Moses and his siblings to be born from a union that the Torah would forbid once it was revealed at Mount Sinai, is the rule that we do not appoint a person to the highest position in the land unless the people were aware of at least something inappropriate that such a person had been guilty of actively or passively before his appointment. [This rule, if enforced, will diminish the chances of such high ranking people allowing their high office to develop feelings of superiority to those around him. Ed.] The best known example of the rule is King David, one of whose ancestors was Ruth, the Moabite, a people with whom intermarriage is strictly prohibited by the Torah. [He was reminded of this repeatedly during his life, not only his fitness as king being questioned, but even his claim to be Jewish. Compare Rashi on Yuma 22. Ed.]
Siftei Chakhamim
His father’s sister. . . Rashi is telling us that we should not interpret this דודתו like the דודתך written in the section of forbidden relations (Vayikra 18:14): “Do not come close to דודתך ,” where it means “your uncle’s wife.” [Here it cannot mean this,] as Yocheved was Leivi’s daughter, thus she was Kehos’s sister. For Kehos was Leivi’s son. And Kehos was Amram’s father. Thus, Yocheved was the sister of Amram’s father.