St Clement: “See that you not be deceived"

many will come in my name, saying, ‘I am he,’ and ‘The time has come'.

-- Lk 21:5-11

The Antichrist's deception already begins to take shape in the world every time the claim is made to realize within history that messianic hope which can only be realized beyond history through the eschatological judgment. The Church has rejected even modified forms of this falsification of the kingdom to come under the name of millenarianism, especially the "intrinsically perverse" political form of a secular messianism.

-- CCC 676

The Epistle of Saint Clement of Rome, pope and martyr. Read the Epistle here.