It is time for the Church to respond to these attacks that are undermining Scripture and greatly contributing to the loss of the next generation from the Church, and to begin equipping generations to know how to answer the skeptical questions in our modern scientific age. Every Christian should know what he believes, why he believes it, how to share it with others, and how to defend it against lies and attacks, and this called "APOLOGETICS". Apologetics and Christian doctrines can help you to defend your Cristian religion and resist attacks from enemies of God (Satan, demons, unbelievers).
The word Apologetics is derived from an English word “apology”, yet the word apology comes from a Greek word "apologia" which basically means “to give a defense" or sometimes “give an answer”. It does not mean to apologize, which is a common misconception among some who are not acquainted with this thrust of Christianity. It means to give a logical defense of the Christian faith.
Christian apologetics, then, is the science of giving a defense of the Christian faith. Christian apologetics is simply presenting a reasonable defense of the Christian faith and truth to those who disagree.
Apologetics is a branch of Christianity that defends the authority of God’s Word, the character of God, and Christianity as a whole, and also uses the Bible as an offensive “weapon” (e.g., like a sword) against all other worldviews and opposition. Not only do we need to teach general Bible apologetics in this age, but we also need to teach creation apologetics (dealing with the evolution/millions-of-years issues).
There are many skeptics who doubt the existence of God and/or attack belief in the God of the Bible. There are many critics who attack the inspiration and inerrancy of the Bible. A leading cause of false doctrines in Christianity comes from the lack of knowledge of the Bible and trying to interpret the Bible without revelations.
"....You are wrong, because you know neither the scriptures nor the power of God" Matthew 22:29
Christian apologetics is a necessary aspect of the Christian life. Probably the key verse for Christian apologetics is 1 Peter 3:15, “But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect...” There is no excuse for a Christian to be completely unable to defend his or her faith.
Another aspect of Christian apologetics that is often ignored is the second half of 1 Peter 3:15, “but do this with gentleness and respect...” Defending the Christian faith with apologetics should never involve being rude, angry, or disrespectful. While practicing Christian apologetics, we should strive to be strong in our defense and at the same time Christ-like in our presentation. If we win a debate but turn a person even further away from Christ by our attitude, we have lost the true purpose of Christian apologetics.
Every Christian should be able to give a reasonable presentation of his or her faith in Christ. No, not every Christian needs to be an expert in apologetics. Every Christian, though, should know what he believes, why he believes it, how to share it with others, and how to defend it against lies and attacks. "Christian Religion and Biblical Doctrines will teach and empower you, as a believer, to defend your faith and realign your life with God's Word alone.