Luke 20:36

How do we understand these two resurrections? Do we, it may be, understand that they who rise now will not rise then; that the resurrection of some is now, of some others then? It is not so. For we have risen in this resurrection, if we have rightly believed; and we ourselves, who have already risen, are looking for another resurrection in the end. Moreover, both now are we risen to eternal life, if we perseveringly continue in the same faith; and then, too, we shall rise to eternal life, when we shall be made equal with the angels.

(de Quæst. Ev. l. ii. cap. 49.) As our discourse is made up and completed by departing and succeeding syllables, so also men themselves whose faculty discourse is, by departure and succession make up and complete the order of this world, which is built up with the mere temporal beauty of things. But in the future life, seeing that the Word which we shall enjoy is formed by no departure and succession of syllables, but all things which it has it has everlastingly and at once, so those who partake of it, to whom it alone will be life, shall neither depart by death, nor succeed by birth, even as it now is with the angels; as it follows, For they are equal to the angels.

For as the multitude of the angels is indeed very great, yet they are not propagated by generation, but have their being from creation, so also to those who rise again, there is no more necessity for marriage; as it follows, And are the children of God.

Or they are equal to the angels, and the children of God, because made new by the glory of the resurrection, with no fear of death, with no spot of corruption, with no quality of an earthly condition, they rejoice in the perpetual beholding of God's presence.

As if He said, Because it is God who worketh in the resurrection, rightly are they called the sons of God, who are regenerated by the resurrection. For there is nothing carnal seen in the regeneration of them that rise again, there is neither coming together, nor the womb, nor birth.