One of his favorite schemes is to use other religions to spread his false doctrine. For example, the Jews believe that Jesus was a great teacher, but not the Messiah God. Salvation comes by keeping the Law. Muslims believe that Jesus was simply a great prophet. Jehovah Witnesses teach that Jesus is really the archangel Michael.
Salvation comes by serving the Watchtower organization.
The Mormon's teach that He is the brother of Lucifer. Salvation comes by following the ordinances and guidelines of the Mormon church. A more subtle religion of the enemy is that of secular humanism. This religion teaches that there is no God, only the natural forces of nature. They preach somehow that these natural forces billions of years ago created the entire universe out of nothing.