"Which have been spoken by the mouth of"

1. 1 Ne. 3: 20
   20 And also that we may preserve unto them the words which have been spoken by the mouth of all the holy prophets, which have been delivered unto them by the Spirit and power of God, since the world began, even down unto this present time.
2. 1 Ne. 5: 13
   13 And also the prophecies of the holy prophets, from the beginning, even down to the commencement of the reign of Zedekiah; and also many prophecies which have been spoken by the mouth of Jeremiah.
3. 2 Ne. 25: 1
   1 Now I, Nephi, do speak somewhat concerning the words which I have written, which have been spoken by the mouth of Isaiah. For behold, Isaiah spake many things which were hard for many of my people to understand; for they know not concerning the manner of prophesying among the Jews.