21 But hear, my beloved, this proof that retribution shall take place at the end. For when the Shepherd divides His flock and sets some on His right hand and some on His left, until He shall have acknowledged the service of the good, then He will cause them to inherit the kingdom; and until He shall have rebuked the evil and they are condemned, then He will send them to the torment. And as to them that sent messengers after the King, saying, This man shall not be king over us, when He shall receive the kingdom and return, then His adversaries shall be slain before Him. And the labourers who hastened and were wearied in the vineyard, shall not receive the reward till the labour shall cease. And the traders who received the money, when the Lord of the money shall come, then shall He exact the usury. And the virgins who, while waiting for the bridegroom, slumbered and slept because He delayed to come, when they shall hear the cry, then they shall awake and trim their lamps; and they that are wise shall enter in; and the foolish shall be shut out. And they who were before us in entering the faith, without us shall not be made perfect.
Source: Demonstrations (New Advent)