וְכִלְכַּלְתִּ֤י אֹֽתְךָ֙ שָׁ֔ם כִּי־ע֛וֹד חָמֵ֥שׁ שָׁנִ֖ים רָעָ֑ב פֶּן־תִּוָּרֵ֛שׁ אַתָּ֥ה וּבֵֽיתְךָ֖ וְכָל־אֲשֶׁר־לָֽךְ׃
我要在那裡供養你，因為還有五年的饑荒，免得你和你的家人，以及你一切所有的，都陷入貧困。
Sifrei Devarim
And thus do you find, that wherever the righteous go, blessing comes in their wake. Israel went down to Gerar — blessing came to Gerar, viz. (Bereshith 26:12) "And Israel sowed in that land, etc." Jacob went down to Lavan — blessing came down in his wake, viz. (Ibid. 30:27) "I have found through divination that the L-rd has blessed me for your sake." Joseph went down to Potifera — blessing came in his wake, viz. (Ibid. 39:5) "and the L-rd blessed the house of the Egyptian for Joseph's sake." Jacob went down to Pharaoh — blessing came down for his sake, viz. (Ibid. 47:10) "And Jacob blessed Pharaoh." In what way did he bless him? In that years of famine were withheld from him. And after the death of Jacob they returned, as it is written (Ibid. 50:21) "And now, do not fear, I (Joseph) will feed you and your little ones," and (Ibid. 45;11) "And I will feed you there." Just as "feeding" there was in the (projected) years of famine, so, the "feeding" here (50:21) was in the years of famine, (the famine having returned with Jacob's death). These are the words of R. Yossi.