"If anyone says or holds that the punishment of devils and wicked men is temporary and will eventually cease, that is to say, that devils or the ungodly will be completely restored to their original states: let him be anathema." [Canons of the Provincial Council of Constantinople, 543: John Clarkson & others, S.J., The Church Teaches (Rockford, Illinois: Tan Books and Publishers, Inc., 1973) no. 878]
"He [Christ] will come at the end of the world; he will judge the living and the dead; and he will reward all, both the lost and the elect, according to their works…whether good or bad; the wicked, a perpetual punishment with the devil; the good, eternal glory with Christ." [The Fourth Lateran Council, 1215: The Church Teaches, 881]
"But if anyone dies unrepentant in the state of mortal sin, he will undoubtedly be tormented forever in the fires of an everlasting hell." [Letter to the Bishop of Tusculum, 1254, by Pope Innocent IV (1243-54): The Church Teaches, 883]
"Therefore, all who die in actual mortal sin are excluded from the kingdom of God and will suffer forever the torments of hell where there is no redemption." (The First Vatican Council, 1869-70: The Church Teaches, 892]
"If anyone says that a man
can be justified even after death; or if he says that the punishments
of the damned in hell will not last forever: let him be anathema."
[The First Vatican Council, 1869-70: The Church Teaches,
893]
"For a monumental struggle against the powers of darkness pervades the whole history of man. The battle was joined from the very origins of the world and will continue until the last day, as the Lord as attested. Caught in this conflict, man is obliged to wrestle constantly if he is to cling to what is good. Nor can he achieve his own integrity without valiant efforts and the help of God's grace." [Gaudium et Spes, no. 37 (Vatican II, 1962-1965): Walter M. Abbott, S.J., The Documents of Vatican II, p.235]
"For He sent His Son, clothed in our flesh, in order that through this Son He might snatch men from the power of darkness and of Satan (cf. Col. 1:13; Acts 10:38) and that in this Son He might reconcile the world to Himself (cf. 2Cor. 5:19)." [Ad Gentes, no. 3 (Vatican II, 1962-1965): Walter M. Abbott, S.J., The Documents of Vatican II, p.586]
"Since we know not the day nor the hour, on our Lord's advice we must constantly stand guard. Thus when we have finished the one and only course of our earthly life (cf. Heb. 9:27) we may merit to enter into the marriage feast with Him and to be numbered among the blessed (cf. Mt. 25:31-46). Thus we may not be condemned to go into eternal fire (cf. Mt. 25:41) like the wicked and slothful servant (cf. Mt. 25:26), into the exterior darkness where 'there will be the weeping and the gnashing of teeth' (Mt. 22:13; 25:30)." [Lumen Gentium, no. 48 (Vatican II, 1962-1965): Walter M. Abbott, S.J., The Documents of Vatican II, p.80]