"Nephi had already used the expression 'great and abominable church' in reference to a specific organization identified in his historical time as being more destructive and wicked than all other churches of its day. He used that same expression now in a broader or more general sense. In the context of his vision, the church or kingdom of God had again been established on the earth. With the establishment of The Church of Jesus Christ of Latter-day Saints and the restoration of priesthood and its keys, there was once again an organization on earth with the authority to preach the gospel and administer in the ordinances thereof; it is by divine testimony the 'only true and living church upon the face of the whole earth' (D&C 1:30), salvation being found in none other." (McConkie and Millet, Doctrinal Commentary on the Book of Mormon, vol. 1, p. 109)
Bruce R. McConkie
"The titles church of the devil and great and abominable church are used to identify all churches or organizations of whatever name or nature -- whether political, philosophical, educational, economic social, fraternal, civic, or religious -- which are designed to take men on a course that leads away from God and his laws and thus from salvation in the kingdom of God…."
"Hence we find our Lord saying, 'He that is not with me is against me; and he that gathereth not with me scattereth abroad.' (Matt. 12:30.)" (Mormon Doctrine, p.138)