פירוש על איכה 2:7

[He] nullified. He rejected,²⁶Alternatively, ‘he burnt.’ and similarly, “You rejected נֵאַרְתָּה the covenant of Your servant.”²⁷Tehilim 89:40.

Like that of a festival day. For they were making merry and singing with a loud voice in its midst. So did the enemies let out a cry of joy when it was destroyed.