Rashi on Leviticus 26:15/רש"י על ויקרא כ״ו:ט״ו

1ואם בחקתי תמאסו AND IF YE WILL SCORN MY ORDINANCES — scorn those who practise them.

2משפטי תגעל נפשם [IF] YOUR SOUL LOTH MY JUDGMENTS — This implies hating the Sages.

3לבלתי עשות (lit., that my commandments should not be done) — this therefore implies that one prevents others from practising them. (That they themselves do not do them has already been stated in v. 14).

4את כל מצותי ALL MY COMMANDMENTS — This refers to him who denies the Divine origin of the commandments, asserting that I have not commanded them. It is for this reason that Scripture states, “all My commands” and does not state, as in v. 14, "all these commands”.

5להפרכם את בריתי TO MAKE VOID MY COVENANT — denying the great principle of the existence of God (Sifra, Bechukotai, Section 2 3). — Thus you have here seven sins the first of which brings the second in its train and so on to the seventh. And these are: he has not studied and therefore has not practised the commandments; consequently he scorns others who do practise them, hates the Sages, prevents others from practising, denies the Divine origin of the commandments, and finally denies the existence of God.