וַיִּשְׁלַח֩ יָד֨וֹ הַמַּלְאָ֥ךְ ׀ יְרֽוּשָׁלִַם֮ לְשַׁחֲתָהּ֒ וַיִּנָּ֤חֶם יְהוָה֙ אֶל־הָ֣רָעָ֔ה וַ֠יֹּאמֶר לַמַּלְאָ֞ךְ הַמַּשְׁחִ֤ית בָּעָם֙ רַ֔ב עַתָּ֖ה הֶ֣רֶף יָדֶ֑ךָ וּמַלְאַ֤ךְ יְהוָה֙ הָיָ֔ה עִם־גֹּ֖רֶן האורנה [הָאֲרַ֥וְנָה] הַיְבֻסִֽי׃ (ס)
Ketika malaikat itu mengulurkan tangannya ke arah Yerusalem untuk membinasakannya, Yang Mahakekal berbalik dari malapetaka itu. Ia berfirman kepada malaikat yang membinasakan rakyat itu: “Cukuplah! Sekarang tahanlah tanganmu.” Saat itu malaikat Yang Mahakekal berada dekat tempat pengirikan Arauna, orang Yebus.
Rashi
The Yevusite. He was the chief officer of the Zion fortress the name of which is Yevusi.22Having formerly belonged to them, see earlier verses 5:6–5:9.
Radak
And the angel stretched out his hand - The Holy One projected the image of an angel with a drawn sword in his hand stretched over Jerusalem. He placed it next to the threshing floor of Aravnah the Jebusite in order that David would see it there and pray, and that Gd would be entreated of him there in that place. Then when the plague stopped it would be a sign to David that this is the place of entreaty and there will be the Holy Temple, the house of prayer and service - just as Gd commanded him through the prophet Gad to build there an altar. His prayer was answered through fire which came down from the heavens to consume his offering as it says in Divre HaYamim.