Exapina is an intensified form meaning 'suddenly' or 'all at once.' It appears in Mark 9:8 at the Transfiguration: 'And suddenly [exapina], looking around, they no longer saw anyone with them but Jesus only.' The word marks the moment of divine withdrawal — the cloud, Moses, and Elijah gone, and only Jesus remaining. This sudden reversal reveals who Jesus truly is.
The exapina of the Transfiguration is a theological turning point. In a sudden moment, the disciples see that Jesus is not one prophet among many but the singular fulfillment. 'He alone' — no law, no prophecy, no other mediator — remains. This 'suddenly' echoes the suddenness of divine intervention throughout Scripture: the sudden appearance of angels, the sudden falling of fire on Elijah's altar, the sudden opening of prison doors (Acts 16:26). God works at His own pace — and sometimes that pace is 'suddenly.'