The words "brothers" and "people of Israel" are a doublet that refer to the men of the ten northern tribes and emphasize the family relationship between them and the tribes of Judah and Benjamin. (See: [[rc://en/ta/man/translate/figs-doublet]])
This can be stated in active form. Alternate translation: "because I have made this thing happen" (See: [[rc://en/ta/man/translate/figs-activepassive]])