NT:4202
porneia, porneias, hee
fornication
a. used properly, of illicit sexual intercourse Acts 15:20,29; 21:25
b. Used in accordance with a form of speech common in the O.T. and among the Jews which represents the close relationship existing between Jehovah and his people under the figure of a marriage
(from Thayer's Greek Lexicon, Electronic Database. Copyright (c) 2000 by Biblesoft)
NT:3429
moichaoo, moichoo:
to have unlawful intercourse with another's wife, to commit adultery with:
(from Thayer's Greek Lexicon, Electronic Database. Copyright (c) 2000 by Biblesoft)
NT:3431
moicheuoo;
to commit adultery
a. absolutely (to be an adulterer): Matthew 5:27
b. to commit adultery with, have unlawful intercourse with another's wife: Matthew 5:28
(from Thayer's Greek Lexicon, Electronic Database. Copyright (c) 2000 by Biblesoft)
Now that we have defined terms lets look at what you consider an exception.
Matthew 19:8-9
He said to them, "Because of your hardness of heart, Moses permitted you to divorce your wives; but from the beginning it has not been this way. 9 "And I say to you, whoever divorces his wife, except for immorality (the Greek is porneia), and marries another woman commits adultery (the Greek word is moichaoo)." NAS
I fail to see how you can take this verse as an exception. Jesus said the only acceptable reason for a divorce is "porneia" (fornication).
Tell us arunangelo since you are a Catholic, how does the Catholic Church justify annulments based on what you posted? After all an annulment is just another term for divorce.
Also, what about confession of sin? Is it your contention that a Christian who divorces and then remarries cannot be forgiven?