The Book Of Mormon

Now it came to pass that Alma began to deliver the word of God unto the people, first in the land of Zarahemla, and from thence throughout all the land.

And these are the words which he spake to the people in the church which was established in the city of Zarahemla, according to his own record, saying: I, Alma, having been consecrated by my father, Alma, to be a high priest over the church of God, he having power and authority from God to do these things, behold, I say unto you that he began to establish a church in the land which was in the borders of Nephi; yea, the land which was called the land of Mormon; yea, and he did baptize his brethren in the waters of Mormon.