After Brigham's baptism, he really wanted to meet Joseph Smith. He and his good friend, Heber C. Kimball, made their way to Kirtland to visit the Prophet. He found Joseph Smith out chopping wood with Hyrum. Brigham could tell from the moment he met the Prophet that Joseph was inspired of God.
Joseph Smith knew the destiny of Brigham Young because Joseph told others that Brigham would some day lead the Church.
As soon as he could, Brigham and Heber moved to Kirtland to be near the Prophet Joseph. Joseph told Brigham that there were to be twelve apostles chosen to preach the gospel to the world. The three witness of the Book of Mormon were to choose the apostles. Oliver Cowdery, David Whitmer and Martin Harris selected Brigham Young as an Apostle of the Lord. Brigham was ordained on February 14, 1835.
"The twelve shall be my disciples, and they shall take upon them my name . . . And by [their] hands I will work a marvelous work among the children of men . . . that [many] may come unto the kingdom of my Father."
D&C 18:27, 44.