@Judi, are you looking for specific instances involving people we know, rather than generalizations about attitudes and acts that have been perpetrated in the name of Christianity?
That might be a great idea, and I can certainly think of some folks at whom I’d like to shake a copy of your book. There are two hitches there, though:
—You’d have to know that the person considered himself a Christian—and what kind. The term has a broad general meaning that is just a category of religious practice, one of the big divisions of world religions, taking in all faiths based in a belief in Jesus as the son of God. It also refers specifically to those of the born-again persuasion. Some people are private about their faith, and they might even be among the best examples of good Christians, so Christianity doesn’t get credit for them. Some of the loudmouths are also the ones you don’t want as ambassadors.
—You’d have to know enough about the beliefs and practices of those folks to know they were violating them. “That’s not very Christian of them” presumes some knowledge.
There is also the fact that what is really Christian of them in this sense may be the very same moral and ethical standards that other faiths uphold.
I’d also want to be careful to distinguish between acts that are ordinary human foibles, failings, and shortcomings, on the one hand, and outright hypocrisy and falsity to one’s professed convictions, on the other.
If I were to offer you a suggestion, it would be that you pick some one small category of behavior—say, fibbing, which can be a very, very tricky topic—and write an article about it for the Christian magazine circuit. I hear from fellow writers’ club members that although they don’t pay a lot, you can sell the same story to many magazines, and it adds up. That is material and a credential to start from with your book.
Having grown up among Christians of the specific sort, I do know when self-avowed Christians are acting in a way to give Christians a bad name. One young fellow where my son worked talked about it a lot—and also treated his fellow believers well, while showing arrogant disdain toward others and even going out of his way to cause trouble for them.