If there is a God who created the Universe and all that’s in it, regardless of what we perceive him to be, and if he is omnipotent, then we must conclude he knows our hearts and what we are about to do before we do the things we do.

Daniel 4:35 All the inhabitants of the earth are accounted as nothing, But He does according to His will in the host of heaven And among the inhabitants of the earth; And no one can ward off His hand Or say to Him, ‘What have You done?

The Church has a duty and a responsibility to be set apart from the world, in the world but not of the world.
What that means is that the body of Christ, all of us who have accepted his yoke should have lives reflective of Jesus Christ. Our lives will never be perfect but as children of the highest God, we must strive to walk as Jesus Christ did.

Galatians 5:16-17 But I say, walk by the Spirit, and you will not carry out the desire of the flesh.
The urge to have appeal in today’s world has influenced parts of the body of Christ Jesus to make decisions which are antithetical to what Jesus and the scriptures commanded us to do.
The need to be hip, not outdated, relevant, has brought things into our places of worship and into our lives which ought not to be there.
We have no authority to change the unchanging word of God to please anyone. We were not commanded to change or water down God’s word in order to have more appeal to prospective converts.
The written Word of God reveals His will and its eternal truth. Even though written by sin-corrupted man, it was authored by the Holy Spirit (2 Pet. 1:20, 21). Thus attempts to find differences between God’s will and His written Word are foolish.

Not through books which seeks to explain the Bible, not through adopting things and fads, not through the process of sanitizing pagan customs and then pretending they are not the very same customs.
God knows our hearts, the Holy Spirit is in our hearts, it is that little voice which nudges us to do the right thing.
So there is really no sanitizing things we know are sinful and then pretending that we are doing them or celebrating customs we know we shouldn’t be celebrating.

Halloween’s origins date back to the ancient Celtic festival of Samhain (pronounced sow-in). The Celts, who lived 2,000 years ago in the area that is now Ireland, the United Kingdom, and northern France, celebrated their new year on November 1. In addition to causing trouble and damaging crops, Celts thought that the presence of the otherworldly spirits made it easier for the Druids or Celtic priests, to make predictions about the future. 
To commemorate the event, Druids built huge sacred bonfires, where the people gathered to burn crops and animals as sacrifices to the Celtic deities. During the celebration, the Celts wore costumes, typically consisting of animal heads and skins, and attempted to tell each other’s fortunes. http://www.history.com/topics/halloween/history-of-halloween

1 John 2:15

Don’t love the world or anything in the world. If anyone loves the world, the love of the Father is not in him.
If you know in your heart that something is wrong and not of God no amount of washing it, sanitizing it and repackaging it will make it Godly.
We have a duty to eschew pagan customs, not cleanse them then pretend they are harmless, or that we only engage in them because we want to make the children happy.
We have a duty to do the exact opposite which is to train up our children in the way they should go so that when they are old they may not depart from it.
Proverbs 22: 6 Train up a child in the way he should go, and when he is old he will not depart from it.

The body of Christ is stronger when we stand out not when we stand down, the light of God shines through and reaches out to the unsaved when we are set apart from the ways of the world even though we are in the world.
I urge the Church to get back to teaching the ways of Christ, embracing humility of spirit, less emphasis on money, and a healthy teaching and explaining the Gospel of Jesus Christ our Lord.
Money is important in our daily lives, I know many Christians will have the number of times money is mentioned in the Bible ready at their fingertip as a means to make their point of why so much time is spent asking for money, yet it is important that we do not give the impression that we are selling a pathway to Christ.
Christ paid it all, he died pennilessly, I am not suggesting that we should live impoverished lives. Far from it, nevertheless the church must find ways to speak less about money and more about the Gospel.
The Devil is crafty, let us not allow him to use us to bring any more of his practices into our places of worship and assembly.
Let us see the Devil for what he is and stand with the full armor of God against this onslaught. Let us not be unwitting participants toward the enhancement of Satan’s Kingdom.
Ephesians 6:12  For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.