Grace to You says:
Evil spirits are no more active and sinister on Halloween than they are on any other day of the year; in fact, any day is a good day for Satan to prowl about seeking whom he may devour (1 Peter 5:8). But "greater is He who is in you than he who is in the world" (1 John 4:4). God has forever "disarmed principalities and powers" through the cross Christ and "made a public spectacle of them, triumphing over them through [Christ]" (Colossians 2:15).
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.
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?You can read the entire article here.
Dress-up fun from the past....