2 Corinthians 12:4
How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter.
2 Corinthians 9:15
Thanks be unto God for his unspeakable gift.
1 Peter 1:8
Whom having not seen, ye love; in whom, though now ye see him not, yet believing, ye rejoice with joy unspeakable and full of glory: