The old testament is not the Gospel. Judaism is not Christianity. Slavish devotion to Old Testament (Jewish Bible) literalism is bordering on idolatry. It is neither correct nor necessary. Luther taught us to interpret the scriptures plainly, not literally. Where Luther asserts that Moses wrote in a literal sense, this is true, for how else could Moses explain the creation? But where the old testament concepts and language conflict with the book of nature, that should be interpreted mythically. This does not diminish the Old Testament's foreshadowing of the Gospel message. Luther translated the New Testament into German first, before translating the Old Testament. There's a reason for that, and it's important, for that's where the Gospel resides. And the Gospel works through the Holy Spirit, not through scriptural literalism.