12 For He, “by whom all things were made,” has built “mansions” for all of us: there He would have that which we have go before us; that we may not lose it on earth. When, however, you have kept them on earth, tell me for whom you are to “gather them together”? You have children: add one more to their number; and give something to Christ also. “He is disquieted in vain.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)