CCC 676

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 judgement. the Church has rejected even modified forms of this falsification of the kingdom to come under the name of millenarianism, Cf. DS — Denzinger–Schönmetzer (Enchiridion Symbolorum). especially the "intrinsically perverse" political form of a secular messianism. Pius XI, Divini Redemptoris, condemning the "false mysticism" of this "counterfeit of the redemption of the lowly"; cf. GS 20-21.

Read the full chapter 2. I Believe in Jesus Christ, the Only Son of God ¶422–682

Cited in 1