Catholics/catholic versus protestant


I am a protestant who is well aware of the fact that a lot of protestant theology is constructed simply to go against catholic theology whether it is right or wrong. My question on 1st Peter 3:18 - 4:6 is that I would like to know exactly, according to catholic theology, who Christ preached to and for what purpose. Thank you very much.

Dear Pete,

the spirits in prison are the souls of the persons who died before Christ, and Christ preached to them after His death to give also to them the possibility to receive His saving word.

There is a deep difference between the catholic concept of salvation and the protestant one; let me try to explain this difference.
God loves us infinitely and He desires to lead each of us to the eternal life  and to the true happiness. But God is perfectly Holy and Good; God cannot tolerate evil because evil is uncompatible with His good and holy nature.
So, we cannot go to heaven as long as we are not completely purified from our sins and sanctified.
Our sanctifcation is necessary for us to go to heaven.
God desires to sanctify us, but He has given us a free-will, so God needs our consent in order to purify and sanctify us. God respects our choices and therefore God cannot santify those who do not want to be sanctified and purified, those who do not want to stop sinning, those who do not want to live a holy life.
Salvation in catholicism is a process which consists in the sanctification of the person; therefore, salvation is a process which lasts all our life, and it may continues also in the afterlife, if a person dies without being completely sanctified. This is the meaning of Purgatory, which represents the addictional process of sanctification necessary for those who die without being completiely sanctified.

Among protestants you can find many misrepresented claims about the teachings of the Catholic Church. The Cathechism contains the official teachings of the Church.
You can find the Cathechism on line at

I hope this may help,

please let me know if you  need any clarifications,

Your brother in Christ,


PS I think that faith cannot come only from logic, because to have faith in God means to trust and love God.
I think however that logics and science prove the existence of our soul and the existence of  God and that there are many rational arguments strongly supporting the christian faith.
Basically, science has proved that the state of the universe is determined by some specific mathematical equations, the laws of physics; the universe cannot exist independently from such equations, which determine the events and the properties of such events.
However we know that a mathematical equation cannot exist by itself, but it exists only as a thought in a conscious and intelligent mind. In fact, a mathematical equation is only an abstract concept, which existence presupposes the existence of a person conceiving such a concept.  
Therefore, the existence of this mathematically structured universe does imply the existence of an intelligent God; this universe cannot exist by itself, but it can exist only if there is a conscious and inteligent God conceiving  it according to some specific mathematical equations.
Since the universe cannot exists by itself, but only because God conceive it, God certainly knows everything in every instant. God knows everything becuase eberything is under His control and everything exists only because of Him.

There are some other arguments, which explanation is rather long and Allexperts allows only to give short answers. You can find such arguments  in the following site

where  I analyse the incongruencies of the materialistic conception of the mind, on the basis of our present scientific knowledges about brain and matter.
This analysis points out how the laws of physics  prove that the   brain cannot generate consciousness, which existence implies  the presence in man of a unbiological/unmaterial element. The problem of consciousness is then strictly connected to the one of the existence of the soul and, consequently, the existence of God.
In the first article entitled “Mind and brain...” you can find a general discussion of the mind and brain problem from a scientific point of view.
In the second article entitled “Scientific contraddictions in materialism”
you  can find an explanation of the fundamental inconsistencies of  the  typical arguments used by materialists, such as the concept of emergent, macroscopic or holist property, complexity, information, etc.
In the section called “FAQ: answers to  visitors' questions” you can find the answer to many typical questions, such as "Are there any scientifically proved miracles?", "Does the existence of the universe imply the existence of God?", "Can science explain God?", "Can science establish which is the true religion?", "Can science explain consciousness in the future?", and many others.  


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I am a catholic physicist and I am married with four children. I can give a scientific proof of the existence of the soul. I am very interested in the following issues: faith and science, rational proof of the existence of God, christianity versus other religions, the Bible, protestantism versus catholicism, miracles. Probably you will find interesting my answers to questions such as: "How can I know that God exist?", "How can I know that catholicism is the true religion?", "Why does evil exist?", "Who created evil?", "Why does Hell exist?", "Why did Jesus have to suffer on the Cross?" , "If God knows everything, why did He create those souls who go to Hell?"


Theology, physics, biblical studies, catholic apologetics.

I am author of several articles on the most important scientific journals, such as Physical Review B and Physical Review Letters.

A degree in Physics and a Ph.D. in Solid State Physics.

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