Christian apologetics is the defense and commendation of the faith. The foundational text is 1 Peter 3:15: "Be ready always to give an answer [apologia] to every man that asketh you a reason of the hope that is in you with meekness and fear." This is a command, not a suggestion. Every believer is called to be able to explain and defend what they believe and why.
Paul modeled apologetics throughout his ministry. He "reasoned" in the synagogues (Acts 17:2), "disputed" daily in the school of Tyrannus (Acts 19:9), and gave a masterful apologetic address on Mars Hill (Acts 17:22-31), engaging Greek philosophy while proclaiming the resurrection. Before Festus, Paul declared, "I am set for the defence [apologia] of the gospel" (Philippians 1:17).
Biblical apologetics is not neutral. It does not grant the unbeliever's presuppositions and try to argue from there. It begins with the authority of God's Word, exposes the bankruptcy of every competing worldview, and calls the sinner to repentance. As Paul writes, "Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ" (2 Corinthians 10:5).
Webster preserves the defensive, non-apologizing meaning.
APOLOGET'IC, a. Defending by words or arguments; excusing; said or written in defense, or by way of apology; as an apologetical essay.
Note: "defending by words or arguments." This is the correct sense. An apologetic person in 1828 was someone who mounted a defense, not someone who was sorry. The corruption of this word into a synonym for timidity is one of the English language's most damaging shifts.
• 1 Peter 3:15 — "But sanctify the Lord God in your hearts: and be ready always to give an answer [apologia] to every man that asketh you a reason of the hope that is in you with meekness and fear."
• 2 Corinthians 10:5 — "Casting down imaginations, and every high thing that exalteth itself against the knowledge of God."
• Philippians 1:17 — "I am set for the defence [apologia] of the gospel."
• Acts 17:2-3 — "And Paul, as his manner was, went in unto them, and three sabbath days reasoned with them out of the scriptures."
• Jude 1:3 — "Earnestly contend for the faith which was once delivered unto the saints."
"Apologetic" now means timid and sorry — the exact opposite of its original meaning.
The English word "apologetic" has undergone a complete semantic inversion. To be "apologetic" today means to be sheepish, sorry, and uncertain. "He was very apologetic about his views." This is the opposite of the Greek apologia, which was a bold, confident, public defense. Paul was never apologetic in the modern sense about anything. He was apologetic in the biblical sense about everything.
Within Christian circles, apologetics has also been corrupted in two directions. On one side, "evidentialist" apologetics treats Christianity as a hypothesis to be tested by neutral reason — as if the unbeliever's mind is functioning properly and just needs more data. This grants the very autonomy of human reason that Scripture denies (Romans 1:18-21). On the other side, some Christians reject apologetics entirely, claiming "you can't argue someone into the kingdom." This is true as far as it goes, but Peter still commands us to give an answer, and Paul still reasoned in the synagogues. The Spirit uses means, and one of those means is reasoned argument.
The worst corruption is the apologetic tone of the modern church itself. Churches apologize for their beliefs. Pastors preface hard truths with "I know this is uncomfortable." The church has become apologetic about apologetics — sorry that it has a defense to give.
• "When Peter said 'give an answer,' he used the word apologia — a legal defense. He was not telling you to say sorry for believing the Bible."
• "The church needs more apologetics and less being apologetic. Paul did not hedge when he stood on Mars Hill."
• "Casting down imaginations is not polite dialogue. It is intellectual warfare waged in the service of truth."