Isaiah 49:21

Then shalt thou say in thine heart, in joyful surprise, Who hath begotten me these, seeing I have lost my children, before and during the Babylonian captivity, and am desolate, a captive, and removing to and fro? Zion was childless and unfruitful, rejected of her Lord and left by the wayside; she thought she had been utterly forsaken. And who hath brought up these? the children which now come with the demand that they be given sufficient room to spread out in the land. And once more her surprised question is sounded, Behold, I was left alone; these, where had they been? The Church cannot grasp the mercy of the Lord as it is revealed in this rich blessing. The Lord now gives a most solemn answer: