Apologetics fulfills part of the great commandment(Loving God with your mind):
“Teacher, which is the great commandment in the Law?” And he said to him, “You shall love the Lord your God with all your heart and with all your soul and with all your mind.
Apologetics defined(from www.etymonline.com):
1640s, "vindicatory, containing a defense," from French apologétique from Latin apologeticus from Greek apologetikos "defensible," from apologeisthai "speak in one's defense," from apologos "an account, story," from apo "away from, off" (see apo ) + logos "speech," from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')." Meaning "regretfully acknowledging failure" is from 1855.
"branch of theology which defends Christian belief," 1733, from apologetic (which is attested from early 15c. as a noun meaning "formal defense"); also see -ics.
c. 1300, "forbidding, prohibition," also "action of guarding or protecting," from Old French defense, from Latin defensus past participle of defendere "ward off, protect" (see defend). But it also arrived (without the final -e) from Old French defens, from Latin defensum "thing protected or forbidden," neuter past participle of defendere.
Apologetics is commanded:
1 Peter 3:15
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;
holding fast the faithful word which is in accordance with the teaching, so that he will be able both to exhort in sound doctrine and to refute those who contradict.
Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write appealing to you to contend for the faith that was once for all delivered to the saints.
For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
2 Timothy 2:24–25
And the Lord’s servant must not be quarrelsome but kind to everyone, able to teach, patiently enduring evil, correcting his opponents with gentleness. God may perhaps grant them repentance leading to a knowledge of the truth,
Conduct yourselves with wisdom toward outsiders, making the most of the opportunity. Let your speech always be with grace, as though seasoned with salt, so that you will know how you should respond to each person.
2 Corinthians 10:5
We are destroying speculations and every lofty thing raised up against the knowledge of God, and we are taking every thought captive to the obedience of Christ,
And Stephen, full of grace and power, was performing great wonders and signs among the people. But some men from what was called the Synagogue of the Freedmen, including both Cyrenians and Alexandrians, and some from Cilicia and Asia, rose up and argued with Stephen. But they were unable to cope with the wisdom and the Spirit with which he was speaking.
for he powerfully refuted the Jews in public, demonstrating by the Scriptures that Jesus was the Christ.
So Paul stood in the midst of the Areopagus and said, "Men of Athens, I observe that you are very religious in all respects. "For while I was passing through and examining the objects of your worship, I also found an altar with this inscription, 'TO AN UNKNOWN GOD ' Therefore what you worship in ignorance, this I proclaim to you. "The God who made the world and all things in it, since He is Lord of heaven and earth, does not dwell in temples made with hands; read more.
And he entered the synagogue and continued speaking out boldly for three months, reasoning and persuading them about the kingdom of God. But when some were becoming hardened and disobedient, speaking evil of the Way before the people, he withdrew from them and took away the disciples, reasoning daily in the school of Tyrannus This took place for two years, so that all who lived in Asia heard the word of the Lord, both Jews and Greeks.
It is right for me to feel this way about you all, because I hold you in my heart, for you are all partakers with me of grace, both my imprisonment and in the defense and confirmation of the gospel.
to whom He also presented Himself alive after His suffering by many infallible proofs, being seen by them during forty days and speaking of the things pertaining to the kingdom of God.
Our ultimate goal:
Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
consider this: Whoever turns a sinner from the error of his way will save his soul from death and cover over a multitude of sins.