How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter.
Unspeakable - not in themselves, otherwise Paul could not have heard them; but "which it is not lawful for a man to utter." They were designed for Paul's own consolation, not for communication to others (Exodus 34:6; Isaiah 6:3). Paul had not the power adequately to utter; nor if he had, would he have been permitted; nor would earthly men comprehend them (John 3:12; 1 Corinthians 2:9). A man may know more than he can speak.