This lecture argues that contemporary Western culture has not abandoned revelation but inverted it, replacing divine authority with the sovereignty of the self and the logic of 'my truth'. It contrasts the biblical pattern of revelation, where truth comes from beyond us and demands our submission, with a cultural model in which truth is filtered, curated, and authenticated by personal preference and experience. Through four case studies–new spiritualities, the quiet revival, conspiracy culture, and artificial intelligence–it shows how this 'Great Revelation Inversion' has reshaped both private belief and public life. Finally, it contends that Christian apologetics must recover confidence in God's objective, authoritative self-revelation in Christ and Scripture as the only revelation capable of confronting, correcting, and transforming the self rather than merely reflecting it.