Halloween is a day that glorifies darkness. It does not have Christian origins, and moreover, it has obviously Pagan origins- and therefore it is anti-Christ to the core. Anyone who wants to walk in the Light of God's Word and be out of the realm of the devil needs to steer clear of all celebration and approval of this holiday.
1 John 1:5-6: "5 This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all. 6 If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth"
2 Corinthians 6:14-18: "14 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? 15 And what concord hath Christ with Belial? or what part hath he that believeth with an infidel? 16 And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people. 17 Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you. 18 And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty."