Ammon was a great missionary. One of four sons of King Mosiah, Ammon felt impressed to go to the Lamanites and teach them the gospel. After receiving permission from his father, he traveled to a land called Ishmael. Ammon became a servant of the Lamanite King Lamoni, defending his flocks. The Book of Mormon tells us how through divine guidance he was able to convert many to the gospel and organize the church among the people of Ishmael.