This is one of the most graphic chapters in the Bible referring to male and female reproductive processes and fluids and the diseases that can come along with such things. And God is giving commands to show His people that He is concerned even with these things. By these commands He is letting His people know the proper place of human sexuality and making a sharp distinction between Himself and other pagan gods and religion. God’s people need to listen to God’s voice when trying to understand the proper place of sex.