Is Defending the Faith Biblical?


by Rob Lundberg

One of the biggest concerns I have for the Christian church is the fact that we are right now behind the eight ball when it comes to engaging the culture.*  Being one who is in the culture, I am seeing a very dangerous thing happening when it comes to the churches being lulled into apathy when it comes to the defending the faith.

People who spend most of their time in the secular city, on their jobs, at the coffee shops and other venues, are being inundated with the static of the culture. The music, the media, milieux, and other venues are becoming more and more secularized. Then take into consideration that the universities and colleges today are the mechanisms for pumping out cultural Marxism in out the culture.  It has been said and it is a pretty strong fact that the influence of a professor pontificating from the professorial lectern has an influence in the culture for the next thirty years.

It will be those coming out of the universities and colleges that will be the shapers and thinkers of the next generation in our culture. I only wish pastors would get a grip on some of these facts and the studies showing a vast tectonic shift in the ideologies of culture, which make sharing the gospel more and more challenging for today’s evangelists.

And yet, I still get this objection that apologetics and doing apologetics is not biblical. So if you’re a pastor who gets it, God bless you. It is time to get started.  If you are a pastor who is wondering more this post is for you.  And if you’re a pastor who is still stuck on “all you need is Jesus and the Bible, this post is just for you and those in your congregation that think this way. Do you realize that Jesus did apologetics and that therer are a running theme from Genesis to the Revelation that God is calling us to consider the reasons why Christianity is true.

With these sobering thoughts in mind, allow me to share some thought with you about apologetics, and how it is biblical.

I.  Apologetics is commanded by God. This is the most important reason: God commands us to use our reasoning in the defense of the faith. We find, all throughout the New Testament, exhortations to defend the faith. Here are some of them:

1 Peter 3:15 says, “…but sanctify (set apart) Christ as Lord in your hearts, always being ready to make a defense (apologia) [give a response back] to everyone who asks you to give an account for the hope that in you, yet with gentleness and reverence (fear).” This passage tells us several things:

First it tells us that we should be ready. If you are doing the first part, of setting apart Christ as Lord in your heart, and living out the Christian life on a daily basis, I want you to know that people read you as a fifth gospel. They may never read Matthew, Mark, Luke or John, but if someone knows that you are a Christian and they see you living it out, as it says “always being ready.” People are going to eventually ask you what is different about you.

It is no longer just enough to live your Christian life in the world, and thinking that is going to suffice.  We need to also gird our minds for being ready to give a reason or reasons why we believe what we believe to be true.  Being ready in your life also will encourage you to be ready in your preparation as an apologist.[1] There are some great resources out there to pick up and study from. But it is not just having the information, it is also our attitude.

There is a lot of attitude issues in the apologetics community, which seems to be a sense of over-confidence and cockiness. This ministry always seeks to find ways to identify  with the people asking the questions; where they are, and possibly what they are going through. We seek to do this with “gentleness and respect” in a manner that the person knows that we are separating the question from the questioner/challenger. Having an attitude of readiness with this in mind will create a low level of eagerness and confidence. Figure it this way, we have the truth, people are seeking the truth. Respect the questioner, dismantle the question and get the person to see what is in their heart.

Second, when we give that reason to those asking the question (Colossians 4:5-6), we should not expect that every conversation is going to turn into an opportunity for evangelism. Keep in the back of your mind that the one challenging what you believe does need it, but we must first be willing and able to give the answer first, and then leave the results to the Lord on what happens next.[2]  I see many Christians today heralding that “Jesus is the answer” to a world that does not know what their questions are.

Thirdly and finally, doing pre-evangelism and making Christ Lord in our hearts are unified together. If Jesus is really Lord, then we should be obedient to the Word when it says that we are “destroying speculations and every lofty thing raised up against the knowledge of God, and … taking every thought captive to the obedience of Christ” (2 Corinthians 10:5). In other words we should be confronting issues in our own minds and in the expressed thoughts of others that are preventing them from knowing who God is. That is what the defense of the faith (apologetics) is all about.

Over in Philippians 1:7 the Apostle Paul speaks of his mission as one of “defending and confirming the gospel.” He adds in verse 16, “I am put here for the defense of the gospel” (Phil 1:16). And with all the false ideologies that permeate the religious landscape, we are put where we are to defend it as well.

Jude 3 declares: “Beloved, while making every effort to write to you about our common salvation, I felt it necessary to write to you appealing that you contend earnestly for the faith once for all given over to the saints.” The people Jude was writing to had been assaulted by false teachers and he needed to encourage them to protect (literally agonize for) the faith as it had been revealed through Christ. Jude makes a significant statement about our attitude as we do this in verse 22 when he says, “have mercy on some, who are doubting.” Apologetics, then, has plenty of warrant for expressing compassion. It is not just having a passion to defend the faith, it is a passion to reach the person you are dialoguing with the gospel of Jesus Christ.

Titus 1:9 makes the knowledge of Christian evidences a requirement for church leadership. An elder in the church should be “holding fast the faithful word which is in accordance with the teaching, that he may be able both to exhort in sound doctrine and to refute those who contradict.” With relativism and forms of religious pluralization in the culture, people change churches and sometimes bring with them teachings that may not be biblical. This is one of many reasons along with the elder body equipping the people to do the same is where apologetics is important in the practical sense in the local church.

In 2 Timothy 2:24-25 Paul declares that “the Lord’s bondservant must not be quarrelsome, but be kind to all, able to teach, patient when wronged, with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth.” Anyone attempting to answer the questions of unbelievers or correcting wayward teaching in the church will surely be wronged and be tempted to lose patience, but our ultimate goal is that they might come to a knowledge of the truth that Jesus has died for their sins.

Indeed, the command to use reason is part of the greatest command. For Jesus said, “`Love the Lord your God with all your heart and with all your soul and with all your mind.’ This is the first and greatest commandment” (Matthew 22:37-38) [3]. We cannot love our neighbor nor the breathren as ourselves unless we love God first.

So we see from Scripture that apologetics is commanded by God. But there is a second element to why we are to be involved in the task of apologetics and that the realm of reason.

II.  Reason Demands Apologetics. God created us with minds to operate in the realm of human reason. The intellect and the capacity to reason things out is part of God’s image in us (Gen. 1:27 cf. Col. 3:10). Indeed, it is that by which we are distinguished from “brute beasts” (Jude 10). God calls upon us to use our reason (Isa. 1:18) to discern truth from error (1 John 4:6) and right from wrong (Heb. 5:14). A fundamental principle of reason is that we should have sufficient grounds for what we believe.[4] An unjustified belief is just that–unjustified.

Socrates said, “The unexamined life is not worth living.” (ὁ δὲ ἀνεξέταστος βίος οὐ βιωτὸς ἀνθρώπῳ) And an unexamined belief is not worth believing. The question of “why do we believe what we believe” has never been more important. Therefore, it is incumbent upon Christians “to give a reason for their hope.” This is part of the great command to love God with all our mind, as well as our heart and soul (Matt. 22:36-37).

Because God and reason demand that we engage in apologetics, we see that we cannot keep the Christian faith and our humble confidence in the truthfulness of the faith “that was once for all delivered to the saints” to ourselves. There is a third element to why we defend the faith and that is…

III. The World Needs Us to Engage in the Apologetic Task.  As culture grows more and more skeptical in many areas, there will be many people who may not have any intention of believing what we believe.  That said, many people refuse to believe without some evidence, as indeed they should. Why say indeed they should? Because we should not be forcing someone to believe something if they are not willing to investigate it for themselves. Just because you or I say something is true, does not mean that what we are sharing is really true. We tell the atheist that brute fact argumentation is not going to de-convert a Christian with a response, why should we try and do the same thing.

God has created us as rational beings but He does to expect us to live irrationally. He wants us to look before we leap. This does not mean there is no room for faith! Christianity is not a blind leap of faith into the dark but a step of faith into the light–into the light of evidence. He does not want us to leap in the dark, but to run in His light.

No person is going to get onto an elevator unless he has some reason to believe it will hold him up. Likewise, no reasonable person gets on an airplane that has a broken wing and smoke coming out the tail end. Belief that is prior to belief in. Our faith is as only as good as the one in whom it is placed. Thankfully there is evidence to dovetail with faith. Therefore evidence and reason are important to establish belief that. Once this is established, one can place his faith in it.

IV,  What are the Results of Engaging in the Apologetic Task?

The fact that there are results that are produced while engaging in the apologetic task is a common misnomer among many Christians. It is often said that apologetics never helps to bring anyone to Christ. This is a serious misrepresentation of the facts.[5]

Augustine of Hippo is one example. There were several significant rational turning points in Augustine’s life before he came to Christ. First, was reasoned out the problem with Manichaean dualism. One significant turning point here was the success of a young Christian debater of Manicheans called Helpidius (see The Confessions).

Second, Augustine reasoned his way out of total skepticism by seeing the self-defeating nature of it (see his Against the Academics).

So we see that there are some good reasons for why we should defend the faith. God commands it. Reason demands it. The world is calling for answers to the difficult questions regarding meaning and purpose. Lastly, God is the one who gets the glory for the results.

If you would like to email us about what you have engaged here, please feel free to do so. We would love to hear from you.


* We have moved to Word Press and will be migrating past blog posts that are still relevant over from This post is one of those that I find very relevant and worth revising and re-presenting.

[1] Let me give you word of encouragement. Even though it is good to be well studied in the task of apologetics; even though you may not have taken some courses in apologetics online or on a campus; and even though you may not have attended any apologetics training seminars; let me encourage you with this: any time you open your mouth, you are an apologist for Him! Never forget that.

[2] I find that many folks will try and lead the “happy pagan” to the foot of the cross by using some methodology that they learned in church when that person is not even at the point of accepting the evidence we are sharing with them. Are we being disobedient to Christ by not dragging them to the cross? No, in fact we may be more disobedient by dragging them down the “saw dust trail” and creating the possibility of a false profession of faith.

[3] May I also add John 13:34-35 which is the commandment for us as disciples. This one does not negate the Great Commandment, nor the Great Commission (Matthew 28:18-20)

[4] I will sometimes play the “rebel’s advocate” and ask a fellow believer why they are a Christian. Often times in response to that, I get how they became a Christian. What this shows in many situations a lack of investigation, and lack of encouragement by the church at large to investigate why Christianity is the true faith.

[5] See Greg Koukl’s book Tactics: A Game Plan for Discussing Your Christian Convictions, (Grand Rapids: Zondervan, 2009): 35-38, where he discusses the fallacy of thinking that one cannot argue a person into the Kingdom. This whole discussion is depending upon the soteriology of the one making the claim.



  1. CS Lewis said this:
    “If all the world were Christian, it might not matter if all the world were uneducated. But, as it is, a cultural life will exist outside the Church whether it exists inside or not. To be ignorant and simple now — not to be able to meet the enemies on their own ground — would be to throw down our weapons, and to betray our uneducated brethren who have, under God, no defense but us against the intellectual attacks of the heathen. Good philosophy must exist, if for no other reason, because bad philosophy needs to be answered. The cool intellect must work not only against cool intellect on the other side, but against the muddy heathen mysticisms which deny intellect altogether. Most of all, perhaps we need intimate knowledge of the past. Not that the past has any magic about it, but because we cannot study the future, and yet need something to set against the present, to remind us that periods and that much which seems certain to the uneducated is merely temporary fashion. A man who has lived in many place is not likely to be deceived by the local errors of his native village: the scholar has lived in many times and is therefore in some degree immune form the great cataract of nonsense that pours from the press and the microphone of his own age.”

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    1. I am using a Word Press platform with the Tortuga template. I am on the middle plan with is the Premium plan which is about $99 year and I pay for the URL. Hope this answers your questions.

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