And behold, a man of the children of Israel came and brought near to his brothers the Midyanite woman, before the eyes of Moshe and before the eyes of all the congregation of the children of Israel; and they were weeping at the entrance of the Tent of Meeting.
Torah Temimah: Yerushalmi Sanhedrin 10:2 — the taunt about Tzipporah.
Sefaria — Yerushalmi Sanhedrin 10:2
English: What is “before the eyes of Moshe”? Like a person who says, “Here, in your eyes” — that he said to him: Moshe, is not your Tzipporah a Midyanite, and are not her hooves split — and this one pure and that one impure?
Aggadic reconstruction of Zimri’s public challenge.
The sin is compounded by brazen comparison to Moshe’s own household — the verse’s “before his eyes” is the challenge itself.