וְלֹֽא־יִדְבַּ֧ק בְּיָדְךָ֛ מְא֖וּמָה מִן־הַחֵ֑רֶם לְמַעַן֩ יָשׁ֨וּב יְהוָ֜ה מֵחֲר֣וֹן אַפּ֗וֹ וְנָֽתַן־לְךָ֤ רַחֲמִים֙ וְרִֽחַמְךָ֣ וְהִרְבֶּ֔ךָ כַּאֲשֶׁ֥ר נִשְׁבַּ֖ע לַאֲבֹתֶֽיךָ׃
Janganlah ada sesuatu pun dari barang yang dikhususkan untuk ditumpas itu melekat pada tanganmu, supaya Yang Mahakekal berbalik dari murka-Nya yang menyala-nyala dan memberikan belas kasihan kepadamu, mengasihani engkau, dan membuat engkau bertambah banyak, sebagaimana telah Ia janjikan dengan sumpah kepada nenek moyangmu,
Rashi
למען ישוב ה' מחרון אף THAT THE LORD MAY TURN FROM THE FIERCENESS OF HIS WRATH — for as long as idol-worship exists in the world the fierce wrath of God is kindled against the world (Sifrei Devarim 96:3; Sanhedrin 111b; cf. Rashi on Genesis 9:32).
Chizkuni
ולא ידבק בידך מאומה מן החרם, “none of the loot shall cleave to your hand lest it appear that you wanted to “take the spoil and seize the booty.” (Isaiah 10.6). (B’chor shor)
Da'at Zekenim
ונתן לך רחמים, “so that He will show you mercy;” you will be rewarded for not having displayed mercy towards the inhabitants of this city.”