31 Wherefore ye be witnesses unto yourselves, that ye are the children of them which killed the prophets. . . .Christ prophesies that He will send more prophets, but some of them will be killed. He moans for Jerusalem because they persecute and kill His servants, the prophets, that He sends. The passage implies that divinely sent prophets play a role in God's effort to gather His people.
34 Wherefore, behold, I send unto you prophets, and wise men, and scribes: and some of them ye shall kill and crucify; and some of them shall ye scourge in your synagogues, and persecute them from city to city: . . .
37 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!
In this day of gathering, I am grateful that God once again has sent prophets to teach us the Gospel and lead us in the Lord's ways. How sad that they are reviled and persecuted, even driven from city to city as were Joseph Smith and the early Saints. How tragic that mobs stirred by religious bigots posing as ministers of God would even murder the Prophet Joseph Smith.