“Purified… Because of Their Faith”

Joseph F. McConkie, Robert L. Millet
The disciples were filled with the Holy Ghost and cleansed from all sin because of their faith in the Lord Jesus Christ (compare 1 Nephi 12:8-11; Enos 1:8; Moroni 10:32-33; Commentary 1:86-87).

Doctrinal Commentary on the Book of Mormon, Vol. 4