1 Nephi 13

If you are wondering why there has been such a break in my blogging, I tore my calf muscles and haven't been able to exercise and read.

As the angel foretold events to come, Nephi writes -

"...the angel said unto me: Behold the formation of a church which is most abominable above all other churches, which slayeth the saints of God, yea, and tortureth them and bindeth them down, and yoketh them with a yoke of iron, and bringeth them down into captivity.
6 And it came to pass that I beheld this great and abominable church; and I saw the devil that he was the founder of it."  (1 Nephi 13:5–6)

There have been many that considered this to mean a specific Church.  But we later learn

"...Behold there are save two churches only; the one is the church of the Lamb of God, and the other is the church of the devil; wherefore, whoso belongeth not to the church of the Lamb of God belongeth to that great church, which is the mother of abominations; and she is the whore of all the earth."  (1 Nephi 14:10)

Later Nephi uses the words to describe the Church -

"...it is the kingdom of the devil, which shall be built up among the children of men..."  (1 Nephi 22:22)

When we consider "church of the devil" to be synonymous with "kingdom of the devil" it becomes clear that it is describing the evil institutions and organizations of the devil.