Rabbi David Zvi Hoffman says the text spoke in the language – דברה תורה כלשון בני אדם – but specifically in the language that would be accessible to that first generation of western Semitic people called the Hebrews, who heard the Torah. It uses a very specific type of imagery and language. It’s not going to talk about evolution, and it’s not going to talk about E=MC2; it’s going to talk in the language that’s common to them.

Rabbi Nathaniel Helfgot, “What is פשוטו של מקרא?” YCT Yom Iyun (New York City: 13 January 2014).