Sforno on Numbers 25:14/ספורנו על במדבר כ״ה:י״ד

1ושם איש ישראל המוכה, Pinchas had endangered his own life by what he did in view of the high rank of his victim, one of the 12 princes of the people, as well as a princess from a neighbouring country. [if not for this, the Torah might not have bothered to name the individuals concerned just as it did not name such sinners as the man gathering wood (Numbers 15,33, or the blasphemer Leviticus 24,10. Ed.]