Why not assume the most intelligent code observed (DNA) came from the most intelligent mind we can imagine (God)?

Codes are not materialistic (derived from matter). However, for the naturalistic worldview to be viable, not only must a committed materialist believe that some kind of code system spontaneously generated, but they must also believe that a translation device specific to that exact code must also have been generated through natural processes! However, even putting aside the preposterous proposition that a code system somehow evolved by itself, what is the chance (in the infinite amount of translation devices that might have evolved) for the exact one needed to have evolved simultaneously? And how did matter create something immaterial?