What sin are aborted babies guilty of? What commandment have they broken?
A child aborted prior to birth has not yet committed any sin nor broken any commandment. But that baby is, nevertheless, a sinner. Psalm 51:5 Behold, I was born in iniquity. In sin my mother conceived me.
My dog barks. Barking is a characteristic of being a dog.
Does he bark because he is a dog or is he a dog because he barks?
The characteristic of humans is that they sin. Do they sin because they are sinners or are they sinners because they sin?
David said, long before he committed any sin or transgression of the law, that he was "in sin" - another way of saying he was a sinner. Even in the womb he was a sinner.
We are all born "in Adam" and are all in the condition of being in sin, a sinner. And because of our sinful condition, it will soon manifest itself in our life choices. It is our nature.
Remember the story of the fox and the scorpion.
They were standing by a wide swift river. Both wanted to get to the other side but the scorpion couldn't swim.
He asked the fox if he could ride on his back across the river. The fox refused saying “no you’ll sting me and I’ll drown.”
The scorpion assured him, “If I do that, we’ll both drown.”
The fox thought about it and finally agreed. So the scorpion climbed up on his back, and the fox began to swim.
Halfway across the river, the scorpion stung him.
As the poison filled his veins, the fox turned to the scorpion and said, “Why did you do that? Now we will both drown.”
“I couldn’t help it,” said the scorpion. “It’s my nature.”
It is our nature to sin. We are sinners by nature, and that nature results in action.