On that day the earth will burst asunder,
the earth will be shaken apart
the earth will be convulsed.
The earth will reel like a drunkard,
and it will sway like a hut;
Its rebellion will weigh it down,
until it falls, never to rise again. (21.19-20)
The Book of Isaiah
The end of ages is already with us. The renewal of the world has been established, and cannot be revoked. In our era it is in a true sense anticipated: the Church on earth is already sealed by genuine, if imperfect, holiness. Yet, until a new Heaven and a new earth are built as the dwelling place of justice, the pilgrim Church, in its sacraments and institutions belonging to this world of time, bears the likeness of this passing world. It lives in the midst of a creation still groaning and in travail as it waits for the sons of God to be revealed in glory. (48)
Lumen Gentium (“Light of the Gentiles”)
From the dogmatic constitution of the Church of the Second Vatican Council
Let us be quick to clarify the difference between “eschatology” and “apocalypse” : the former concerns the last or final matters of this age or this world and its passing away; the latter concerns theologically or divinely revealed vision, often of the former.
n., any system of doctrines concerning last, or final, matters, as death, the Judgment, the future state, etc.
[from Greek εσχατος, last + -logy.]
n., a prophetic disclosure or revelation
[Middle English apocalipse, from Late Latin apocalypsis, from Greek αποκαλυσις, revelation, from αποκαλυπτειν, to uncover