Sing, O akarah (barren woman [i.e., Yerushalayim emptied out by the Golus that Isaiah sees coming]), thou that didst not bear; break forth into singing, and shout for joy, thou that didst not travail with child; for rabbim bnei shome'mah (more are the children of the desolate woman [i.e. referring to those of Jerusalem making aliyah from the Golus so that Moshiach's Kehilah can come forth at Jerusalem-Ac 2:41]) than the bnei be'ulah (children of the married woman; i.e., Jerusalem as the Sarah at first barren then greatly fruitful; see Gn17:16), saith Hashem [see Ga.4:27 OJBC].