Lo, children are a heritage of the LORD: and the fruit of the womb is his reward.
All Commentaries on Psalms 127:3 Go To Psalms 127
Augustine of Hippo
AD 430
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 shall appear, pain and groaning shall pass away. ...