First you have to identify with the word. It means an unclean act, like a human having sex with an animal.
In religion it is defined several ways:
- Putting a false God in God’s Temple. The new Mass would qualify here. Dan.11:31.
- A true priest of God having a service with a false priest.
- When Paul VI went to the U.N. and proclaimed that they were the last hope for peace.
- The Rev. Billy Graham preaching inside Catholic Churches.
- When John Paul II went into a Synagogue. Going into a house of a false God.
- Inter-faith worship. Which took place at Assisi.

I cover this subject in my booklet. “The Great Apostasy.” Listed in books on my web site.
The marks of the Beast are covered on my web site under, “Apostasy & the Beast.”