Tafsir of Al-Qalam 68:3

And indeed, for you—in exchange for your enduring the various hardships from them and your bearing the burdens of the Message—is a reward, a great recompense whose magnitude cannot be measured.

Unceasing, meaning it is not cut off despite its greatness, or it is not bestowed upon you as a favor by people. For it is a gift from the Exalted, without intermediary, or it is from Him, the Exalted, because you are the Beloved of Allah the Exalted, and He—Mighty and Majestic is He—is the Most Generous of the generous. It is the character of the generous not to remind others of their favors, especially when it is bestowed upon their beloveds, as it is said:

I shall thank ‘Amr, if my death is delayed, for favors he did not mention as a debt, even though they were momentous.