Now you're starting to annoy me just a tad. I think you could have done without that last paragraph, but the book you're looking for is Matthew.
As for marriage, you don't need to follow the christian religion to have reason to marry. Believe it or not, non-christians, and non-religious people want to marry just as much as everyone else. Why? Because it's a binding union between two people to make them one. When you marry someone, that's (usually) the person you plan on living with for the rest of your life; you don't need to be religious to want that.