Genesi 29:34 Commento: Rashi, Rashbam, Sforno & Radak

הפעם ילוה אישי THIS TIME WILL MY HUSBAND BECOME ATTACHED TO ME — Because the Matriarchs were prophetesses and knew that twelve tribes would issue from Jacob and that he would have four wives, she said, “From now he will have no fault to find with me, for I have assumed my full share in giving him children” (Midrash Tanchuma, Vayetzei 9).

על כן קרא שמו לוי, one may assume that it was Yaakov who gave the boy this name. (compare Kimchi)

הפעם ילוה, I have by now acquired a tendency, a justified presumption, חזקה, of producing numerous children. Our sages in Yevamot 64 consider an occurrence thrice repeated as establishing such a presumption.