וָאֶתֵּ֨ן לָכֶ֜ם אֶ֣רֶץ ׀ אֲשֶׁ֧ר לֹֽא־יָגַ֣עְתָּ בָּ֗הּ וְעָרִים֙ אֲשֶׁ֣ר לֹא־בְנִיתֶ֔ם וַתֵּשְׁב֖וּ בָּהֶ֑ם כְּרָמִ֤ים וְזֵיתִים֙ אֲשֶׁ֣ר לֹֽא־נְטַעְתֶּ֔ם אַתֶּ֖ם אֹכְלִֽים׃
我將一片土地賜給你們,那地不是你勞苦得來的;又將城邑賜給你們,那些城不是你們建造的,你們卻住在其中;葡萄園和橄欖園不是你們栽種的,你們卻吃它們的果子。
Sforno
ויאכל תנובות שדי, Moses mentions only the eating, not referring to the labour in the fields leading up to this, eventually. He meant that it would not take any effort to reach the state of eating the produce the land has to offer. Compare Joshua 24,13 “vineyards and olive trees which you did not plant you are eating from.”