וַיֹּ֙אמֶר֙ יִשְׂרָאֵ֔ל רַ֛ב עוֹד־יוֹסֵ֥ף בְּנִ֖י חָ֑י אֵֽלְכָ֥ה וְאֶרְאֶ֖נּוּ בְּטֶ֥רֶם אָמֽוּת׃
И Израиль сказал: 'Достаточно; Иосиф, сын мой, еще жив; Я пойду и увижу его, прежде чем я умру.'
Rashi
רב ENOUGH or MUCH — Much joy and pleasure is still in store for me, since my son Joseph is yet alive.
Rashbam
רב; my heart has stood still long enough during all the years I did not think that Joseph was still alive now I am definitely convinced