Musar su Levitico 26:14

The same is true of the essential holiness of the L-rd which hovers over His people, Israel, through which they will merit to endure forever, as it is written (Devarim 4:4): "And you who cleave to the L-rd your G-d are all alive today, etc.", concerning which Chazal have said that this is only through the agency of Torah. And when men separate themselves from Torah, so long as the "moistness" of Torah is still upon them they still occupy themselves somewhat with its mitzvoth, to which they were accustomed in the past. But with the passage of time, as the moistness begins to dry, they also begin to forsake mitzvoth, and who knows to what this can lead. And, in truth, this is the intent of the verses in Parshath Bechukothai (Vaykira 26:14-15): "And if you do not hearken to Me (to toil in Torah, etc., as Rashi explains there), and you do not do all these mitzvoth (If you do not learn, you will not do), and if (as a result of not doing) you despise (the doers of) My statutes, and if your souls repel (the exemplifiers of) My ordinances, (the sages), not to do (i.e., preventing others from doing) all of My mitzvoth (i.e., if you deny that they are 'My' mitzvoth) to break My covenant" (i.e., to deny Me — seven transgressions, the first leading to the second, etc., all this as explained by Rashi according to Torath Cohanim.)