The People of the House of Israel Will I Gather in from the Four Corners of the Earth

Nephi, drawing on the scriptural prophecies his family had in the Brass Plates, describes events that would occur after the crucifixion of Christ.

“And as for those who are at Jerusalem, saith the prophet, they shall be scourged by all people, because they crucify the God of Israel, and turn their hearts aside, rejecting signs and wonders, and the power and glory of the God of Israel. And because they turn their hearts aside, saith the prophet, and have despised the Holy One of Israel, they shall wander in the flesh, and perish, and become a hiss and a byword, and be hated among all nations. Nevertheless, when that day cometh, saith the prophet, that they no more turn aside their hearts against the Holy One of Israel, then will he remember the covenants which he made to their fathers. Yea, then will he remember the isles of the sea; yea, and all the people who are of the house of Israel, will I gather in, saith the Lord, according to the words of the prophet Zenos, from the four quarters of the earth. Yea, and all the earth shall see the salvation of the Lord, saith the prophet; every nation, kindred, tongue and people shall be blessed.” (1 Nephi 19:15-17)

Questions:

-How is the dispersal and eventual gathering of the house of Israel tied to every nation and people being blessed in the last days?

-How is turning to the true Messiah, Jesus Christ, a key to receiving the covenant blessings made to  Abraham, Isaac, and Jacob?

-Does it please a loving God to see the trials and hardships of those who reject His Son? Are those who cause tribulations for those who have rejected Christ any less responsible for their actions than anyone else? Would true followers of Jesus Christ ever despise and persecute a people who did not share their beliefs?

-Has the Lord begun to gather Israel in our time? What role does the Book of Mormon play in gathering children of Israel?