Is Christian Apologetics Biblical?

Jude 3: "Beloved ... it was needful for me to write unto you, and exhort you that ye should earnestly contend for the faith which was once delivered unto the saints." Apologetics is the branch of Christianity that deals with the defense and establishment of the Christian faith. Christian Apologetics is something every true believer should be involved in, even if it is only a little. "But sanctify Christ as Lord in your hearts, always being ready to make a defense to everyone who asks you to give an account for the hope that is in you, yet with gentleness and reverence" (1 Peter 3:15).
Larry Wessels, director of Christian Answers of Austin. Texas/ Christian Debater (YouTube channel: CANSWERSTV at http://www.youtube.com/user/CAnswersTV?feature=mhee, see our playlist "End Times, Supernatural Prophecies, Tough Bible Questions" at http://www.youtube.com/playlist?list=PL141F261EEFCFD536; websites: http://www.BibleQuery.org, http://www.HistoryCart.com & http://www.MuslimHope.com) presents this short feature on Biblical apologetics. Special thanks to Richard Storey of Portsmouth, United Kingdom for the production of this video.
The word "apologetics" comes from the Greek word "apologia," pronounced "ap-ol-og-ee'-ah." It means, "a verbal defense." It is used eight times in the New Testament: Acts 22:1; 25:16; 1 Cor. 9:3; 2 Cor. 10:5-6; Phil. 1:7; 2 Tim. 4:16, and 1 Pet. 3:15. But it is the last verse that is most commonly associated with Christian apologetics.
"Apologetics is the work of convincing people to change their views."
Therefore, Christian apologetics is that branch of Christianity that deals with answering any and all critics who oppose or question the revelation.