Augustine:
1) Now this resurrection regards not the body, but the soul. For souls, too, have a death of their own in wickedness and sins, whereby they are the dead of whom the same lips say, “Suffer the dead to bury their dead,”–that is, let those who are dead in soul bury them that are dead in body. It is of these dead, then–the dead in ungodliness and wickedness–that He says, “The hour is coming, and now is, when the dead shall hear the voice of the Son of God; and they that hear shall live.” “They that hear,” that is, they who obey, believe, and persevere to the end. Here no difference is made between the good and the bad. For it is good for all men to hear His voice and live, by passing to the life of godliness from the death of ungodliness. Of this death the Apostle Paul says, “Therefore all are dead, and He died for all, that they which live should not henceforth live unto themselves, but unto Him which died for them and rose again.” Thus all, without one exception, were dead in sins, whether original or voluntary sins, sins of ignorance, or sins committed against knowledge; and for all the dead there died the one only person who lived, that is, who had no sin whatever, in order that they who live by the remission of their sins should live, not to themselves, but to Him who died for all, for our sins, and rose again for our justification, that we, believing in Him who justifies the ungodly, and being justified from ungodliness or quickened from death, may be able to attain to the first resurrection which now is. For in this first resurrection none have a part save those who shall be eternally blessed; but in the second, of which He goes on to speak, all, as we shall learn, have a part, both the blessed and the wretched. The one is the resurrection of mercy, the other of judgment. And therefore it is written in the psalm, “I will sing of mercy and of judgment: unto Thee, O Lord, will I sing.” Augustine,“The City of God and Christian Doctrine,” in The Nicene and Post-Nicene Fathers, First Series. 2:245.
2) Likewise to the Corinthians he says: “For I delivered to you first of all that which I also received, how that Christ died for our sins according to the Scriptures.” Again, in his Second Epistle to these Corinthians: “For the love of Christ constrains us; because we thus judge, that if One died for all, then all died: and for all did Christ die, that they which live should no longer live unto themselves, but unto Him which died for them, and rose again. Wherefore, henceforth know we no man after the flesh; yea, though we have known Christ after the flesh, yet from henceforth know we Him so no more. Therefore if any man be in Christ, he is a new creature; old things are passed away; behold, all things are become new. And all things are of God, who hath reconciled us to Himself by Jesus Christ, and hath given unto us the minis try of reconciliation. To what effect? That God was in Christ, reconciling the world unto Himself, not imputing their trespasses unto them, and putting on us the ministry of reconciliation. Now then are we ambassadors for Christ, as though God did beseech you by us; we pray you in Christ’s stead, to be reconciled to God. For He hath made Him to be sin for us, who knew no sin; that we might become the righteousness of God in Him. We then, as workers together with Him, beseech you also that ye receive not the grace of God in vain. (For He saith, I have heard thee in an acceptable time, and in the day of salvation have I succored thee: behold, now is the acceptable time; behold, now is the day of salvation.)” Now, if infants are not embraced within this reconciliation and salvation, who wants them for the baptism of Christ? But if they are embraced, then are they reckoned as among the dead for whom He died; nor can they be possibly reconciled and saved by Him, unless He remit and impute not unto them their sins. Augustine, “Anti-Pelagian Writings,” in The Nicene and Post-Nicene Fathers, First Series, 5:32.