But you think an ancient book with a few pronouncements clears things up because Jesus says so?
You seem to have some kind of problem with the great religion known as 'Christianity'.
1. The age of a book or practice says nothing of the thing's value. Eating is pretty old and I would hate to go without it, even for a day.
2. Any book with pronouncements may speak to you, or not. As a youth, I learned things from the Gospel, George Orwell, and Jughead Double Digest
3. Since I don't believe in divinity, the fact that Jesus or any author says it is irrelevant. You can evaluate their words against other works, or their own other works I guess but the value of the work comes from elsewhere than the author's reputation, at least for me.