Convince the Lamanites of the incorrectness of the traditions of their fathers

1. Alma 26: 24
     24 For they said unto us: Do ye suppose that ye can bring the Lamanites to the knowledge of the truth? Do ye suppose that ye can convince the Lamanites of the incorrectness of the traditions of their fathers, as stiffnecked a people as they are; whose hearts delight in the shedding of blood; whose days have been spent in the grossest iniquity; whose ways have been the ways of a transgressor from the beginning? Now my brethren, ye remember that this was their language.
2. Alma 37: 9
     9 Yea, I say unto you, were it not for these things that these records do contain, which are on these plates, Ammon and his brethren could not have convinced so many thousands of the Lamanites of the incorrect tradition of their fathers; yea, these records and their words brought them unto repentance; that is, they brought them to the knowledge of the Lord their God, and to rejoice in Jesus Christ their Redeemer.