It's my job...I'm a Christian...
No, it’s not your job. You’ve attributed more importance to yourself than you deserve. If you were a true Christian, you would already know the answer. Why don’t you pull out your Bible and look it up? You learn more by doing it yourself. Start with Matthew. Also the Cathechism of the Catholic Church. You’d be surprised at the wealth of information you can learn from reading it.
Do you have any proof?