Is salvation by faith alone?
Paul argues that faith is the only way to go. The gospels disagree.
Are the laws of the Old Testament still binding?
Paul argues that they are not. Mathew and Luke suggest that they are.
Can thieves go to heaven?
Paul says no, the other gospels disagree.
Is divorce ever permissible?
Paul suggest it's okay when an unbelieving partner chooses to leave. The other gospel writers disagree.
How should nonbelievers be treated?
Paul says to shun them, but the other gospel writers suggest otherwise.
There are of course others, but this is a good starter set. especially in regards to faith vs works. That in and of itself shows that Paul and whoever wrote the gospels were not on the same page.
