SECTS WITHIN CHRISTIANITY
Catholics – tell them Jesus is the only mediator, not Mary (1 Timothy 2:5).
Calvinists – tell them about conditional security (Hebrews 6 and 10).
Antinomians – tell them the moral law remains (Romans 8:4).
Universalists – tell them the first commandment: Jesus is the only way (Exodus 20:3; John 14:6).
Wesleyan Perfectionists (Holiness) – tell them that sanctification is progressive; and glorification is after death (Php. 3:12; Heb. 6:1; 1 Cor. 15:53).
Finneyite Pelagians (Holiness) – tell them the nature of original sin is within the human body (Romans 7:23).
Charismatics – tell them the Holy Spirit empowers holy living; and not just tongues, visions, and healing (Romans 8).
Dispensationalists – tell them that preaching the Gospel is far more important than end-times theology (1 Cor. 9:16).
Cessationists – tell them that the promise of dreams and visions is for the last days (Acts 2:17).
WORLD RELIGIONS, CULTS, AND PHILOSOPHIES
Atheists / Agnostics – tell them it is plain and obvious the world is intelligently designed (Romans 1).
New Agers – tell them that God regards all occult practices as sins of rebellion (Deut. 18:9-12; 1 Sam. 15:23).
Hindus – tell them it is appointed unto men once to die; and then to face judgment (Heb. 9:27).
Buddhists – tell them that contemplating Jesus is unfathomably greater than nothing (Heb. 12:2).
Taoists – tell them that God has absolute standards of right and wrong: the Ten Commandments (Exod. 20).
Muslims – tell them that Jesus claimed to be the Son of God (Luke 22:70).
Jews – tell them Jesus accurately fulfilled many messianic prophecies (esp. Isa. 53; Ps. 22).
Pagans / Polytheists – tell them there is only one God (1 Cor. 8:6).
Christian Science – tell them it is bearing false testimony to deny the reality of sickness (Exod. 20:16).
Mormons – tell them there is only one God (1 Cor. 8:6).
Jehovah’s Witnesses – tell them that the Trinity appeared at the baptism of Jesus (Luke 3:22).
Seventh-Day Adventists – tell them keeping a Sabbath is a blessing, but not a matter of salvation (Heb. 4; Col. 2:16).
Further Reading
Walter Martin’s The Kingdom of the Cults
Josh McDowell’s Handbook of Today’s Religions
J. I. Packer’s Concise Theology
The Gospel of Jesus Christ
F. Leroy Forlines and Robert Picirilli, ed. Romans (Free Will Baptist / Randall House)
P. C. Nelson’s Bible Doctrines (AG / GPH)
Stanley Horton’s Systematic Theology (AG / GPH)
Myer Pearlman’s Knowing the Doctrines of the Bible (AG / GPH)
—. Through the Bible Book by Book, Part 4: Romans to Revelation (AG / GPH, 1935)
Robert Picirilli’s Grace, Faith, Free Will (FWB / Randall)