St. John Chrysostom writes that since all humans have a conscience, no human needs a guide or teacher with regard to natural law. He also writes that no one can "...pretend to ascribe the neglect of virtue to ignorance..."
Some Catholic teachers have been very wrong is saying that humans have no culpability for certain actions, such as abortion or contraception or homosexual sex. The Catholic Church through her teaching has always held that simply by the fact that we are human, we know certain things are unnatural and sinful
But, it is also the duty of Catholics to develop their consciences to become more sensitive through the teachings of the Church.
God is the first Creator of Law, both natural law and revealed law, the Ten Commandments. Natural law and the Ten Commandments are one and the same. God revealed the Ten Commandments because men forgot to look into their own reason and sinned against their natural consciences.
Christ Himself, through His Life and teaching also taught us how to follow and illuminate our consciences through the sacraments of the Church, through those conduits of sanctifying grace.
God is the first Creator of Law in the Church as well.
St. Paul is the first person to use the word conscience in the Scriptures, as teachers have told us.
Romans 2:15
New Revised Standard Version Catholic Edition (NRSVCE)
15 They show that what the law requires is written on their hearts, to which their own conscience also bears witness; and their conflicting thoughts will accuse or perhaps excuse them.
When we die, we shall stand before God and accuse ourselves in our particular judgment. I had a small glimpse of this almost three years ago and it was a terrible but revealing happening. I have written about this before. One so-called small venial sin before the Perfection, Goodness and Purity of God is like a mountain.
What I have learned about conscience has been taught to me through the teachings of the Catholic Church from my Holy Communion prep days until even this day. None of what I write about the conscience should be new or startling. But, many false teachers make excuses and even deny natural law, to the peril of the souls of those they teach.
St. Paul also states,
When we die, we shall stand before God and accuse ourselves in our particular judgment. I had a small glimpse of this almost three years ago and it was a terrible but revealing happening. I have written about this before. One so-called small venial sin before the Perfection, Goodness and Purity of God is like a mountain.
What I have learned about conscience has been taught to me through the teachings of the Catholic Church from my Holy Communion prep days until even this day. None of what I write about the conscience should be new or startling. But, many false teachers make excuses and even deny natural law, to the peril of the souls of those they teach.
St. Paul also states,
Romans 9:1
New Revised Standard Version Catholic Edition (NRSVCE)
9 I am speaking the truth in Christ—I am not lying; my conscience confirms it by the Holy Spirit—
When we are in the Holy Spirit, after baptism, we have the ability to develop our consciences. A really good conscience is one which finds the fullness of truth in the Catholic Church. One author, who taught about the conscience, Fr. Laux, which I use in teaching religion and who I used in home schooling and from whom I have been reminded of the above truths, writes this:
"A true conscience speaks the truth; it tells what is truly right and truly wrong. It is a genuine Echo of the voice of God."