"In the mouth of three witnesses shall these things be established."
"Then shall he confess unto you, and deny no more that he has done this murder. And then shall he say unto you, that I, Nephi, know nothing concerning the matter save it were given unto me by the power of God."
“Know ye not that the testimony of two nations is a witness unto you that I am God, that I remember one nation like unto another? Wherefore, I speak the same words unto one nation like unto another. And when the two nations shall run together the testimony of the two nations shall run together also”
2 Nephi 29:8
“The book shall be hid from the eyes of the world, that the eyes of none shall behold it save it be that three witnesses shall behold it, by the power of God … And there is none other which shall view it, save it be a few according to the will of God”
2 Nephi 27:12–13
“Therefore, the Lord himself shall give you a sign—Behold, a virgin shall conceive, and shall bear a son, and shall call his name Immanuel.”
2 Nephi 17:14; Isaiah 7:14
“And now I, Nephi, write more of the words of Isaiah … for he verily saw my Redeemer, even as I have seen him. And my brother, Jacob, also has seen him as I have seen him; wherefore, I will send their words forth unto my children to prove unto them that my words are true. Wherefore, by the words of three, God hath said, I will establish my word. Nevertheless, God sendeth more witnesses, and he proveth all his words”
2 Nephi 11:2-3