Ejchah 3:28 Kommentar: Rashi

Let him stay alone. Whoever was befallen by mourning and trouble should sit alone and wait for good [to come].

And wait. An expression of waiting, as in, “If they say thus to us, ‘Wait דֹּמוּ!’”²⁴I Shmuel 14:9. [in the incident dealing] with Yehonoson.

For He [God] has cast it upon him. For the Master of Decrees has put this decree upon him.²⁵Alternatively, ‘until He removes it,’ i.e., until He removes the suffering from him. (Targum)