Lo, children are a heritage of the LORD: and the fruit of the womb is his reward.
Read Chapter 127
Augustine of Hippo
AD 430
4. And as if thou shouldest say, When shall we rise? we are ordered now to sit: when will be our rising? When the Lord's was. Look unto Him, who went before thee: for if thou heedest not Him, "it is lost labour for thee to rise before dawn." When was He raised? When He had died. Hope therefore for thine uplifting after thy death: have hope in the resurrection of the dead, because He rose again and ascended. But where did He sleep? On the Cross. When He slept on the Cross, He bore a sign, yea, He fulfilled what had been signified in Adam: for when Adam was asleep, a rib was drawn from him and Eve was created; so also while the Lord slept on the Cross, His side was transfixed with a spear, and the Sacraments flowed forth, whence the Church was born. For the Church the Lord's Bride was created from His side, as Eve was created from the side of Adam. But as she was made from his side no otherwise than while sleeping, so the Church was created from His side no otherwise than while dying. If...
5. As if thou shouldest ask again, who are the beloved? "Lo, children, (he reward of the fruit of the womb, are an heritage of the Lord" (ver. 3). Since he saith, "fruit of the womb," these children have been born in travail. There is a certain woman, in whom what was said unto Eve, "in sorrow shalt thou bring forth children," is shown after a spiritual manner. The Church beareth children, the Bride of Christ; and if she beareth them, she travaileth of them. In figure of her, Eve was called also "the Mother of all living." He who said, "My little children, of whom I travail in birth again, until Christ be formed in you," was amongst the members of her who travaileth. But she travailed not in vain, nor brought forth in vain: there will be a holy seed at the resurrection of the dead: the righteous who are at present scattered over the whole world shall abound. The Church groaneth for them, the Church travaileth of them; but in that resurrection of the dead, the offspring of the Church sh...
