Now I want to be careful here because you know that when we do speak to people about Christ and we talk about sin many times they tell us that sin is ignorance. They are not identical ideas. Sin is a positive transgression of the law of God. Or it is a positively culpable failure to live up to the law of God. Whereas ignorance may be a related idea, but it is not an identical idea.
Ignorance is without knowledge.
And specifically in this case, without the knowledge of God and without the knowledge of his will. And that is a problem for many people. It is a problem for everyone in their own selves because while people use the word God they fill that word with content that originates in themselves and their imaginations, not in a true revelation of God. And so while the word God is very commonly employed we actually have many gods in this world competing for that name. Christians say that there is only one God who is properly so called.