Likutei Moharan 58:10/ליקוטי מוהר"ן נ״ח:י׳

110. Now, these devout individuals of the generation must thoroughly consider the grandeur, beauty and prominence that come to them, so that they do not succumb to pride. For it happens that, when the people of the generation fail to guard their tongue, they become incapable of receiving the aforementioned aspect of Shabbat. This is because Shabbat is contingent upon guarding one’s speech, in the aspect of “or speak of [mundane] matters”—that your conversations on Shabbat should not resemble your weekday conversations (Shabbat 113b) .

2Thus if they fail to guard their tongue, then even if the generation’s clever individuals supply the bounty of Shabbat, of the aforementioned repentance, the repentance they radiate becomes corrupted. As a result, the grandeur, beauty and prominence that come to the generation’s devout individuals becomes corrupted, and they grow proud. This is the aspect of “The transgression of their mouths is the word of their lips; they will be trapped by their pride” (Psalms 59:13)—the transgression associated with speech causes them to become trapped in the sin of pride.

3And this is the exile of the Divine Presence. That is, prominence, which is the aspect of malkhut (kingship), the aspect of the Divine Presence, becomes blemished and turns into pride.