Atah Takum, T'rachem Tsiyon, ki et l'chenanah ki va moed.
אַתָּה תָקוּם תְּרַחֵם צִיּוֹן כִּי-עֵת לְחֶנְנָהּ כִּי-בָא מוֹעֵד:
Rise up, comfort Zion, because it is time to be gracious to her, because her time has come!
Words from Pslams 102:14
Music by Shlomo Carlebach.
This niggun has become very popular recently, and can be heard sung on many different occasions.