בקנאו את קנאתי בתוכם – שעשה נקמתי לעיני כולם, כדי שבראותם זה ולא ימחו, יכופר על אשר לא מיחו בפושעים, ובזה ״השיב את חמתי״ מעליהם.
בקנאו
את קנאתו בתוכם, for having taken God’s vengeance in the presence of all
the people, so that by their watching what he did and not protesting
his deed they would qualify for atonement of their sin for not having
protested the sinners at the time when they were about to commit their
evil deeds. Sforno
If we don't protest it is our aveirah.
There are loads of things that we see that are wrong and don't protest.
Silence is complicity.