וְהוֹתִֽרְךָ֤ יְהוָה֙ לְטוֹבָ֔ה בִּפְרִ֧י בִטְנְךָ֛ וּבִפְרִ֥י בְהַמְתְּךָ֖ וּבִפְרִ֣י אַדְמָתֶ֑ךָ עַ֚ל הָאֲדָמָ֔ה אֲשֶׁ֨ר נִשְׁבַּ֧ע יְהוָ֛ה לַאֲבֹתֶ֖יךָ לָ֥תֶת לָֽךְ׃
I nadmierzy ci Wiekuisty w dobrem, w owocu żywota twojego, i w płodzie bydła twojego, i w plonie roli twojej, na ziemi, o której zaprzysiągł Wiekuisty ojcom twoim, iż ją odda tobie.
Ibn Ezra
will grant you overabundance Though there may be evil in the land, and famine, and malediction, you will enjoy a preponderance of good.
Sforno
והותירך ה' לטובה, meaning that your success will be demonstrably greater and more noticeable than that of other nations.
Tur HaArokh
והותירך, “He will grant you an excess, etc.” even if there should be famine on the earth, you will not be severely affected by it, always having sufficient and even more than that.