“Verily verily I say unto you, the hour is coming and now is, when the dead shall hear the Voice of the Son of God; the hour again that is, when they that hear shall live.” (John 5:25)

“By the words then in the beginning, He means the time of the resurrection, wherein He teaches through the word of the Judge that they that sleep shall rise again to answer for their life in the world, that as I said before, devising the fear thence arising as a bridle, He might persuade them to live full excellently and wisely: by the closing words He shews that the due time of believing is now come, but also says that everlasting life will be the reward of obedience: all but declaring, Ye shall all come to judgement, sirs, that is at the time of the Resurrection, but if it seem bitter to you to be punished, and to undergo endless penalties at the hand of the offended Judge, suffer not the time of obedience to pass by, but laying hold of it while yet present, haste ye to attain to everlasting life.”

[St. Cyril the Pillar of Faith, Commentary on the Gospel of St. John]