Korihor the Anti-Christ

Alma 30:6

6 But it came to pass in the latter end of the seventeenth year, there came a man into the land of Zarahemla, and he was Anti–Christ, for he began to preach unto the people against the prophecies which had been spoken by the prophets, concerning the coming of Christ.

Elder Bruce R. McConkie wrote:

“An antichrist is an opponent of Christ; he is one who is in opposition to the true gospel, the true Church, and the true plan of salvation (1 John 2:19; 4:4–6). He is one who offers salvation to men on some other terms than those laid down by Christ. Sherem (Jacob 7:1–23), Nehor (Alma 1:2–16), and Korihor (Alma 30:6–60) were antichrists who spread their delusions among the Nephites.”

(Mormon Doctrine, 2nd ed. [1966], 39–40.)