The Bible says you come from rocks too. Lots of small rocks. It says God formed man out of dirt, and then formed woman from man's rib. If you don't believe mankind came from rocks, you can't believe the Genesis story.

The idea that some molecule, through some chemical process, began making crude copies of itself, and the most successful copies survived, over billions of years evolving more and more complex forms, seems way more plausible than "There was this really complex guy already existing (we don't know where he came from), who came in and started another complex thing called life, then put millions of corroborating pieces of evidence for evolution around, and then went into hiding so that it is now impossible to detect him."