(Rom 5:13) (For until the law sin was in the world: but sin is not imputed when there is no law. (14) Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam’s transgression,….” Since men did die, they did have a law called conscience, and guidelines written into their heart, their soul, their nature: (Rom 2:14) “For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves:” So, the word “law” in our verse is referring to the Law given to Moses. To this day men are breaking the law they know by nature.