1.  They deny the inerrancy  of the Bible.
2.  They deny the Deity of Christ and the virgin birth.
3.  They deny the sinless nature of Christ.
4.  They do not accept the substitutionary death of Christ for their sins.  They believe good works are enough.
5.  They do not believe in the bodily resurrection three days after His death.
6.  They do not believe in the  ascension of Christ into heaven..
7.  They do not believe in the literal future return of Christ.
8.  They do not believe in judgment.
9.  They do not believe in hell.

People who do not want to believe in all of Gods' word, but still want to believe in God, will take the part of God's word they like and then they will make up their own version for the rest. It will probably take some form of the 9 points stated above, but there are others I am sure.

It's either true or it isn't.  You can't just pick and choose.  As well validated as the Bible is, you wonder what their problem is.  Maybe it is easier to believe in Star Wars.