The following is an excerpt from City of God (Book 21, Chapter 30) by Augustine.
“How great shall be that [joy], which shall be tainted with no evil, which shall lack no good, and which shall afford leisure for the praises of God, who shall be all in all! For I know not what other employment there can be where no [laziness], nor any want stimulate to labor. I am admonished also by the sacred song, in which I read or hear the words, Blessed are they that dwell in Your house, O Lord; they will be still praising You. All the members and organs of the incorruptible body, which now we see to be suited to various necessary uses, shall contribute to the praises of God; for in that life necessity shall have no place, but full, certain, secure, everlasting [joy]. For all those parts of the bodily harmony, which are distributed through the whole body, within and without, and of which I have just been saying that they at present elude our observation, shall then be discerned; and, along with the other great and marvellous discoveries which shall then kindle rational minds in praise of the great Artificer, there shall be the enjoyment of a beauty which appeals to the reason. . . . True honor shall be there, for it shall be denied to none who is worthy, nor yielded to any unworthy; neither shall any unworthy person so much as sue for it, for none but the worthy shall be there. True peace shall be there, where no one shall suffer opposition either from himself or any other. God Himself, who is the Author of virtue, shall there be its reward; for, as there is nothing greater or better, He has promised Himself. What else was meant by His word through the prophet, I will be your God, and you shall be my people, Leviticus 26:12 than, I shall be their satisfaction, I shall be all that men honorably desire — life, and health, and nourishment, and plenty, and glory, and honor, and peace, and all good things? This, too, is the right interpretation of the saying of the apostle, That God may be all in all. 1 Corinthians 15:28 He shall be the end of our desires who shall be seen without end, loved without cloy, praised without weariness. This outgoing of affection, this employment, shall certainly be, like eternal life itself, common to all.”
It reminds us that this present fallen world is not all there is; soon we will live with and enjoy God forever in the new city, in the new heaven and the new earth, where we will be fully and forever freed from all sin and will inhabit renewed, resurrection bodies in a renewed, restored creation.