Charles Spurgeon Commentary Romans 5:13-14

"for until the law sin was in the world; but sin is not imputed when there is no law. Nevertheless death reigned from Adam until Moses, even over them that had not sinned after the likeness of Adam`s transgression, who is a figure of him that was to come." — Romans 5:13-14 (ASV)

(For until the law sin was in the world: but sin is not imputed when there is no law. Nevertheless death reigned from Adam to Moses, ever over them that had not sinned after the similitude of Adam's transgression, who is the figure of him that was to come.)

Infants die, although they have never sinned; they die, because death is the penalty of sin; and as they die for faults not their own, so are they saved by righteousness not their own. They die, for Adam sinned; they live, for Jesus died.

For until the law sin was in the world: but sin is not imputed when there is no law. Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression, who is the figure of him that was to come.

Children died who had not actually sinned themselves, but died because of Adam's sin.

(For until the law sin was in the world: but sin is not imputed when there is no law. Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression, who is the figure of him that was to come.)

I suppose that Paul refers even to little children, who had not sinned after the similitude of Adam's transgression, and yet died as the result of Adam's sin.