איכה ג:כו פירוש: רש״י

It is good to hope in stillness. The vav of וְיָחִיל is superfluous just like the vav of “וְאַיָּה וַעֲנָה”²³Bereishis 36:24. [is superfluous in וְאַיָּה. It is good for man to hope, and remain silent and wait for God’s salvation.