וְכִלְכַּלְתִּ֤י אֹֽתְךָ֙ שָׁ֔ם כִּי־ע֛וֹד חָמֵ֥שׁ שָׁנִ֖ים רָעָ֑ב פֶּן־תִּוָּרֵ֛שׁ אַתָּ֥ה וּבֵֽיתְךָ֖ וְכָל־אֲשֶׁר־לָֽךְ׃
“Di sana aku akan memelihara engkau, sebab masih ada lima tahun lagi kelaparan, supaya engkau, seisi rumahmu, dan segala yang kaumiliki jangan jatuh miskin.”
Rashi
פן תורש — The Targum renders this by דלמא תתמסכן LEST THOU BE IMPOVERISHED, for the verb is of the same root as we find in (1 Samuel 2:7) “The Lord maketh poor (מוריש) and maketh rich”.
Ramban
LEST THOU COME TO POVERTY, THOU, AND THY HOUSEHOLD. Joseph said this by way of respect for his father. To his brothers he said, For G-d did send me before you to preserve life,39Verse 5 here. and to give you a remnant,40Verse 7 here. but to his father he did not want to say so. Instead, he said, “that if you will delay in the land of Canaan you will be impoverished for I could not send you much food from the royal storehouse as they will suspect me of selling it there in order to accumulate treasures of money and then return to my land and to my birthplace. But when you come here, and they will know that you are my father and brothers, the king will give me permission to sustain you.”
Ibn Ezra
It is like you shall be cut off. And similar [to this is], "to drive out (lehorish) nations" (Deuteronomy 4:38).