What does Genesis 9:5 mean?

And I want you to know, if anyone takes a human life, I’ll hold them responsible. Even if an animal kills a person, I’ll demand an answer. If someone kills another person, I’ll make sure they answer for it, because people matter to me. Genesis 9:5 - Modern Text Bible

(God is making it clear that human life is sacred and that He will hold both humans and animals accountable for taking a human life. This sets up the seriousness of murder and the value God places on people.)