Emphanizo means to make visible, manifest, or known — and also has a legal/official use meaning to report or lodge a complaint. It appears 10 times in the NT with this dual meaning: spiritual disclosure (Jesus revealing Himself) and legal disclosure (informing authorities).
John 14:21-22 contains two uses in close succession: Jesus promises to 'show myself [emphanizo]' to those who love Him, while Judas (not Iscariot) asks why He doesn't manifest Himself to the world. This passage is the heart of NT emphanizo theology: Christ's self-disclosure is relational and conditional on love and obedience, not a public spectacle. Acts 23:15 and 23:22 use the word for the Jews' legal scheme to 'report' Paul to authorities — the same word for divine and human disclosure, showing how radically the NT repurposes mundane vocabulary for theological use. Hebrews 9:24 says Christ entered heaven 'to appear [emphanizo] for us in God's presence' — an ongoing intercession expressed as continued divine self-manifestation on our behalf.