Alma 45:13-20

After prophesying the extinction of the Nephite people, Alma tells Helaman the survivors will become a part of the Lamanites and become like them.  “And if it so be that they perish, we know that many of our brethren have deserted over unto the Lamanites, and many more will also desert over unto them; wherefore, write somewhat a few things, if thou art spared and I shall perish and not see thee; but I trust that I may see thee soon; for I have sacred records that I would deliver up unto thee” (Moroni 9:24).

The few that don’t will be disciples of Christ, but the Lamanites will pursue them until they are killed. 

Alma then blessed Helaman and his other sons.  He also blessed the land for the sake of the righteous. “And there had been murders, and contentions, and dissensions, and all manner of iniquity among the people of Nephi; nevertheless for the righteous' sake, yea, because of the prayers of the righteous, they were spared” (Alma 62:40).

Helaman was warned the land will be cursed if they are wicked.  This will apply to all nations, kindreds, and people.  Here, Alma was repeating an oft repeated warning. “Wherefore, this land is consecrated unto him whom he shall bring.  And if it so be that they shall serve him according to the commandments which he hath given, it shall be a land of liberty unto them; wherefore, they shall never be brought down into captivity; if so, it shall be because of iniquity; for if iniquity shall abound cursed shall be the land for their sakes, but unto the righteous it shall be blessed forever” (2 Nephi 1:7).

“Yea, and cursed be the land forever and ever unto those workers of darkness and secret combinations, even unto destruction, except they repent before they are fully ripe” (Alma 37:31).

“But I did remain among them, but I was forbidden to preach unto them, because of the hardness of their hearts; and because of the hardness of their hearts the land was cursed for their sake” (Mormon 1:17).

“And this cometh unto you, O ye Gentiles, that ye may know the decrees of God—that ye may repent, and not continue in your iniquities until the fulness come, that ye may not bring down the fulness of the wrath of God upon you as the inhabitants of the land have hitherto done” (Ether 2:11).

The wickedness would be similar to that of the Jews at the time Lehi’s party left Jerusalem.  The prophet Jeremiah warned, “But they hearkened not, nor inclined their ear to turn from their wickedness, to burn no incense unto other gods. Wherefore my fury and mine anger was poured forth, and was kindled in the cities of Judah and in the streets of Jerusalem; and they are wasted and desolate, as at this day” (Jeremiah 44:5-6).

Blessings are obtained based on following the laws of God. “And when we obtain any blessing from God, it is by obedience to that law upon which it is predicated” (D&C 130:21). And the Lord made it clear, “I the Lord cannot look upon sin with the least degree of allowance” (D&C 1:31).

He ended his words to Helaman and blessed the church.

Alma had completed his work in Zarahemla.  He left, going towards the land of Melek.  And with this, Alma disappears from the Book of Mormon record.  Nothing is known about what happened to Alma. 

Mormon testified Alma was a righteous man.  It was believed throughout the church he was either translated or buried by the hand of the Lord, like Moses.  “So Moses the servant of the LORD died there in the land of Moab, according to the word of the LORD. And he buried him in a valley in the land of Moab, over against Beth-peor: but no man knoweth of his sepulchre [OR the place of his burial] unto this day” (Deuteronomy 34:5-6).