Sorry, I don’t know much about halloween at all, but I think it has almost completely pagan origins. And that it enters in the American culture as something very commercial ( you know, many people make money with that, like Christmas and stuff).
Scripture does not speak at all about Halloween, but it does give us some principles on which we can make a decision. However Bible says about witchcraft (Exodus 22:18; Leviticus 19:31; 20:6, 27), the occultism (Acts 13:6-11) and sorcery (Acts 19:19).
So, should a Christian celebrate Halloween? Is there anything evil about a Christian dressing up as a princess or cowboy and going around the block asking for candy? No, there is not. Are there things about Halloween that are anti-Christian and should be avoided? Absolutely! If parents are going to allow their children to participate in Halloween, they should make sure to keep them from getting involved in the darker aspects of the day. If Christians are going to take part in Halloween, their attitude, dress, and most importantly, their behavior should still reflect a redeemed life (Philippians 1:27). There are many churches that hold “harvest festivals” and incorporate costumes, but in a godly environment. There are many Christians who hand out tracts that share the Gospel along with the Halloween candy. The decision is ultimately ours to make. But as with all things, we are to incorporate the principles of Romans 14. We can’t allow our own convictions about a holiday to cause division in the body of Christ, nor can we use our freedom to cause others to stumble in their faith. We are to do all things as to the Lord. x