First and foremost, apologetics is the defense of the christian faith by using the methods of logic, evidence, rationality, truth, and biblical scripture. The primary reason that christians are to use apologetcs is that we are commanded to by God, as I have written down on the front page of this site, 1 peter 3:15 "but sanctify Christ as Lord in your hearts, to be ready always to give an answer to everyone who asks you to give a reason of the hope that is in you, with meekness and gentleness" unfortunately many of todays christ followers or christians have failed to give a decent and truthful answer to those who question the faith and as a result many are turning from the faith while others are mocking christianity. It is very important that christians need to understand their faith and why they believe what they believe, to fully understand their world view and how to live it. Many do not understand the essentials of the faith such as the deity of Christ, salvation by faith through grace alone, justification and sanctification, the atonement and bodily resurrection of Christ Jesus which is just to name a few essential doctrines of the true christian faith. As a direct result, christianity has fragmented into many varieties of denomonations for example: methodists, baptists, presbyterians, apostolics, lutherans. etc. It is essential to know the truth that is in Christ, and how to counter the bad image that is spreading in christianity and as it is known full well, apostasy has crept through many churches and some don't even realize it. Christians must realize that it is the blood of Christ that purifies us and washes away our sins, that sin is absolutely a violation of God's moral character and God hates sin and God's wrath abides upon the sinners, those who are lost and those who are truly not saved and redeemed. eternity is a long time to be wrong. We need apologetics also for the reasons to desipher truth from error. mormonism is error, jehovahs witnesses is error, christian science is error, unity school of christianity is error, open theism is error but to name a few. It boils down to this, a True Christian is under the blood of Christ, He is redeemed, forgiven,justified and sanctified, knows that Jesus is the Only way to God and any other way is heresy, that our sins were imputed on Christ on the cross and in exchange His righteousness was imputed upon us, theologically this is called (Imputation) and that doing good works for salvation is contrary to sound doctrine. We do good works because we are saved!! we christians need to fight the good fight of faith without compromise to the world.
Logic is typically very important in apologetics. To defend the faith, the Christian must use truth, facts, and reason appropriately and prayerfully. The Christian should listen to objections and make cogent and rational comments in direct response to the issues raised.
Logic is simply a tool in the arsenal of Christian apologetics. Logic is a system of reasoning. It is the principle of proper thinking used to arrive at correct conclusions. Of course, some people are better at thinking logically than others, and there is no guarantee that using logic to the best of one's ability will bring about the conversion of anyone. After all, logic is not what saves a person. Jesus does that, and we are justified by faith (Rom. 5:1).
Therefore, the proper use of logic in apologetics is to remove intellectual barriers that hinder a person from accepting Jesus as Savior. Logic is not to be looked at as the answer to every problem facing Christianity nor every objection raised against it. Logic has its limits. It cannot guarantee wisdom. It cannot prove or disprove inspiration or love. It cannot replace the intuition gained through experience, the prompting of the Holy Spirit, nor the clear truth of God's word. Nevertheless, logic is still very valuable and can be quite powerfully used by people, both saved and unsaved.
Logic is a valuable tool in witnessing, particularly when using proofs of God's existence. Consider the following basic approach using logic:
- The universe exists.
- The universe cannot be infinitely old; because if it were, it would have entered into a state of entropy long ago.
- Entropy is the second Law of thermodynamics which states that all things are moving toward chaos and non-usable energy. In other words, everything is running down.
- The universe is not in a state of non-usuable energy; therefore, it is not infinitely old.
- If the universe were infinitely old, the universe would have run out of usable energy long ago.
- Since the universe is not infinitely old, it had a beginning.
- The universe could not have brought itself into existence.
- Something before the universe and greater than the universe had to bring the universe into existence.
- That something is God.
All logical proofs for God have strengths and weaknesses. But the Christian should not be afraid to use logic, reason, and evidence when defending the faith.
I suggest getting books on introduction to logic and go through what you can. Absorb as much as possible. Also, learn to ask questions in discussions. Learn to think about what the ramifications are of what people are saying. Look for logical flaws in their speech and your own and do depend on the Holy Spirit to guide you through it.
In doctrinal apologetics, various Christian teachings are defended, such as the trinity. Also, non-Christian religions are argued against. Christian apologists have developed arguments against Judaism, Islam, and Deism, for example. Changing modes in apologetics, whether or not they are currently fashionable, are important markers in the history of ideas.
There are a variety of Christian apologetic styles and schools of thought. The major types of Christian apologetics include: historical and legal evidentialist apologetics, presuppositional apologetics, philosophical apologetics, prophetic apologetics, doctrinal apologetics, biblical apologetics, moral apologetics, and scientific apologetics.