Halloween Evangelism
There are several different ways Christians will engage in Halloween evangelism. Some will adopt a "No Participation" policy. As Christian parents, they don't want their kids participating in spiritually compromising activities—listening to ghost stories and coloring pictures of witches. They don't want their kids to dress up in costumes for trick-or-treating or even attending Halloween alternatives.
That response naturally raises eyebrows and provides a good opportunity to share the gospel to those who ask. It's also important that parents explain their stand to their children and prepare them to face the teasing or ridicule of their peers and the disapproval or scorn of their teachers.
Other Christians will opt for Halloween alternatives called "Harvest Festivals" or "Reformation Festivals" and lately the church's version of trick or treating called "Trunk or Treat" - the kids dress up as farmers, Bible characters, or Any non scary thing you can fathom. It's ironic when you consider Halloween's beginning as an alternative, but it can be an effective means of reaching out to neighborhood families with the gospel. Some churches leave the church building behind and take acts of mercy into their community, "treating" needy families with food baskets, gift cards, and the gospel message.
Hell House Evangelism
Those are good alternatives; there are others that are not so good. Some churches are using "Hell House" evangelism to shock young people and scare them into becoming Christians. They walk people through rooms patterned after carnival-style haunted houses and put sin on display—women undergoing abortions, people sacrificed in a satanic ritual, consequences of premarital sex, dangers of rave parties, demon possession, and other tragedies.
Here's the problem with so-called Hell House evangelism: To shock an unshockable culture, you have to get pretty graphic. Graphic exhibits of sin and its consequences are unnecessary—unbelieving minds are already full of such images. What they need to see is a life truly transformed by the power of God, and what they need to hear is the truth of God in an accurate presentation of the gospel. Cheap gimmickry is unfitting for Christ's ambassadors.
Trick or Treat
There's another option open to Christians: limited, non-compromising participation in Halloween. There's nothing inherently evil about candy, costumes, or trick-or-treating in the neighborhood. In fact, all of that can provide a unique gospel opportunity with neighbors. Even handing out candy to neighborhood children—provided you're not stingy—can improve your reputation among the kids. As long as the costumes are innocent and the behavior does not dishonor Christ, trick-or-treating can be used to further gospel interests.
Honor God
Ultimately, Christian participation in Halloween is a matter of conscience before God. Whatever level of Halloween participation you choose, you must honor God by keeping yourself separate from the world and by showing mercy to those who are perishing. Halloween provides the Christian with the opportunity to accomplish both of those things in the gospel of Jesus Christ. It's a message that is holy, set apart from the world; it's a message that is the very mercy of a forgiving God. What better time of the year is there to share such a message than Halloween?