The Christian church along with all the others are a study in ignorance. Collectively, they don't know the truth any more than I do. 99% of humanity are followers for one reason or another. All it takes/took over the millenia is a few carismatic jokers with a good gift of gab and a large desire for fame, fortune, and authority and wallah! Houses of worship on every street corner on the planet the 99% literally throws money at every week.
On a global basis, I can't think of anything less productive, less progressive, more dangerous in terms of all the religious wars organized religion causes, and flat out stupid to congregate every week or more and believe in some other human showman that has the theatrics and his or her line of BS down pretty damn well.
You believe these people know the truth they preach. I ask you this: Where did they get this astounding knowledge from and why do each and every one of them differ so drastically?
The Catholics put an 18 year old in collage, pound ancient and unproveable ancient dogma into his brain for a few years and when he gets out, he puts on a black robe, and expects people to kneel down before his, kiss his hand, and call him father. Are you people all crazy or is it me? Oh yeah I forgot, then he's put to work collecting your hard earned money for the next 60 years. Very little of which he gets to keep I might add.
Please, no matter what religion you believe in, just ask for a little bit of proof. They will tell you it is for sure, but considering the lifetime of commitment and money you kick in, that's not a lot to ask is it?