And in a conditional statement for which there are several hypotheses – the word אם will not come between any of the hypotheses before the conclusion. And when it is writtenאם לא יגיד (if he do not utter it)²⁰⁸, it is an exception to this rule, and there is a homiletical interpretation.

Leviticus 5:1 says,ונפש כי תחטא ושמעה קול אלה והוא עד או ראה או ידע אם לוא יגיד ונשא עונו (And if any one sin, in that he hears the voice of adjuration, he being a witness, whether he has seen or known, if he do not utter it, then he shall bear his iniquity), using the word אם in “if he do not utter it”, contradicting Rule 102. This is to teach that the condition אם לא יגיד is a new condition that is separate from the preceding conditions and that anyone who does not utter it shall bear his iniquity²⁰⁹.

footnotes: ²⁰⁸ Leviticus 5:1. ²⁰⁹ Malbim, HaTorah v’HaMitzvah Vayikra 294.