Verses with the word unspeakable in the Apocrypha (2 verses):

Sirach 36:14
Fill Sion with thine unspeakable oracles, and thy people with thy glory:

2 Maccabees 12:16
And took the city by the will of God, and made unspeakable slaughters, insomuch that a lake two furlongs broad near adjoining thereunto, being filled full, was seen running with blood.