וַיֹּ֙אמֶר֙ יִשְׂרָאֵ֔ל רַ֛ב עוֹד־יוֹסֵ֥ף בְּנִ֖י חָ֑י אֵֽלְכָ֥ה וְאֶרְאֶ֖נּוּ בְּטֶ֥רֶם אָמֽוּת׃
Lalu Israel berkata: “Sungguh besar sukacitaku! Yusuf, anakku, masih hidup. Aku akan pergi dan melihatnya sebelum aku mati.”
Rashi
רב ENOUGH or MUCH — Much joy and pleasure is still in store for me, since my son Joseph is yet alive.
Chizkuni
רב, עוד יוסף בני חי, “it is plenty;” Yaakov meant that when the brothers told him that Joseph was alive, and that he was a ruler in Egypt, the second part of the sentence was unnecessary, as long as he knew that Joseph was alive. He was totally unconcerned with Joseph’s standing politically.
Da'at Zekenim
רב, עוד יוסף בני חי, he addressed the driver of the carriages asking if his son Joseph is indeed still alive? (The word רב meaning “captain, driver” appears in this sense in Jonah, 1,6.) An alternate interpretation: Yaakov’s children kept on telling their father about Joseph’s position in Egypt, until their father got tired of listening to this and tried to stop them by saying: רב, “enough,” I now know that my son Joseph is still alive. He added that if this was really true, he would make the journey to Egypt in order to see him once more before he would die.