The Savior said, O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not! (Matt 23:37) One might assume that there are many instances of prophets being stoned in the Old Testament, but there is only one. A prophet named Zechariah was stoned in 2 Chron 24:20-21. Yet, the Savior said that prophets were stoned, and it is only through the Book of Mormon that we learn that this is how the prophet Zenock was martyred. This just provides more evidence that our version of the Old Testament is not very complete. It lacks some plain and precious things (1 Nephi 13:28).