וָאֶתֵּ֨ן לָכֶ֜ם אֶ֣רֶץ ׀ אֲשֶׁ֧ר לֹֽא־יָגַ֣עְתָּ בָּ֗הּ וְעָרִים֙ אֲשֶׁ֣ר לֹא־בְנִיתֶ֔ם וַתֵּשְׁב֖וּ בָּהֶ֑ם כְּרָמִ֤ים וְזֵיתִים֙ אֲשֶׁ֣ר לֹֽא־נְטַעְתֶּ֔ם אַתֶּ֖ם אֹכְלִֽים׃
내가 또 너희의 수고하지 아니한 땅과 너희가 건축지 아니한 성읍을 너희에게 주었더니 너희가 그 가운데 거하며 너희가 또 자기의 심지 아니한 포도원과 감람원의 과실을 먹는다 하셨느니라
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.”