Likutei Moharan 57:8/ליקוטי מוהר"ן נ״ז:ח׳

18. Know, too, that there is a difference between the peace of fasting of the weekdays, and the peace of the delight of Shabbat. That is, the peace of fasting lacks the aspect of speech, [in] the aspect of “they could not speak a word of peace [to him]” (Genesis 37:4). But by means of the delight of Shabbat eating, speech is executed in peace, in the aspect of “For the sake of my kin and my companions, I will now speak peace” (Psalms 122:8). This is the aspect of “or speaking of [weekday] matters” (Isaiah 58:13), which is said with regard to Shabbat, because the mouth is made whole through the great light [that shines] at the time of Shabbat eating.

2And this is as our Sages, of blessed memory, said: The difference between chametz and matzah is but a mashehu (whit).

3ChaMeTZ is the aspect of rectifying anger through fasting, as mentioned above. This is the aspect of “Who is this coming from Edom with ChaMuTZ (bloodstained) clothing?” (Isaiah 63:1). “Edom” is the above mentioned aspect of the liver; chametz corresponds to its subjugation, the aspect of fasting, the absence of eating. This is the aspect of “You must not eat any maChMeTZet (leavened thing)” (Exodus 12:20). “You must not eat”—this is the above mentioned aspect of fasting.

4MaTZah is the aspect of the delight of Shabbat eating, the aspect of “so that taMoTZu (you will nourish) and delight…” (Isaiah 66:11) .

5This is the meaning of “The difference between chametz and matzah …”—i.e., the difference between fasting and the above mentioned delight of Shabbat eating. The difference between them “is but a MaSheHU”—an acronym for “Vhayah Maaseh Hatzedakah Shalom (For the work of charity is peace)” (Isaiah 32:17). That is, the peace of fasting is not like the peace of Shabbat, for the one has no mouth, and the other has a mouth. And this is the difference: The aspect of peace with a mouth has an advantage over peace without a mouth, just as the “speaker” has an advantage over the “living.” Animals are alive like people, yet man has an advantage in that he has the power of speech.

6This is the difference between chametz and matzah, which is the difference between the chet and the heh. Chametz is [spelled] with a CheT. This is the aspect of peace without a mouth, the aspect of the “living,” the aspect of “the ChaiyaT (beast) of the field will make peace with you” (Job 5:23)—i.e., the aspect of peace that has no mouth, that lacks the power of speech, like the beasts of the field.

7But matzaH is [spelled] with a Heh. This is the heh articulators of the mouth, the power of speech, as mentioned above. This is the aspect of “Heh (Here) you have seed” (Genesis 47:23), the aspect of “Sow charity for yourselves” (Hosea 10:12), the aspect of “the work of charity is peace,” as mentioned above.

8{“The lot puts an end to altercation; between those locked in dispute it separates” (Proverbs 18:18).} This is: “The lot puts an end to altercation.” “Lot” is the aspect of the delight of Shabbat, the aspect of “You will rest, and then you will arise to your lot at the end of days” (Daniel 12:13), for then it will be entirely Shabbat. This is the meaning of “You will rest”—the aspect of “but He rested on the seventh day” (Exodus 20:11). This “lot,” which is Shabbat, eliminates altercation and adversaries, as mentioned above.

9Moreover, it has power; with it the aspect of the mouth is made, as mentioned above. This is the meaning of “between those locked in dispute it separates”—between the locking and bonding of the leg of the chet to the roof of the chet. He separates [them], so that the chet becomes a heh—i.e., the aspect of the mouth, as mentioned above.