Commentaries:
In I Corinthians 10:19-21, the apostle Paul compares mixing paganism with Christianity—syncretism—to worshipping demons. This principle includes giving one's time or interest to things of pagan origin.
As an example, the Bible neither mentions nor espouses Valentine's Day or its practices. However, God informs ancient Israel in Deuteronomy 12:29-31 that He had chosen them to represent true religion, and He warns them not to mix pagan customs with worshipping Him as the one true God:
When the LORD your God cuts off from before you the nations which you go to dispossess, and you displace them and dwell in their land, take heed to yourself that you are not ensnared to follow them, after they are destroyed from before you, and that you do not inquire after their gods, saying, “How did these nations serve their gods? I also will do likewise.” You shall not worship the LORD your God in that way; for every abomination to the LORD which He hates they have done to their gods.
Beyond their obvious heathen origins, holidays like Saint Valentine's Day continually secularize, transforming into reflections of the world's present culture and falsifying the religions from which they sprang. Most people in this world, becoming increasingly materialistic, could not care less if Valentine's Day originated in the Roman Lupercalia or early Roman church doctrines. Religion—true, syncretized, or pagan—has little influence on them. All they care about is whether they enjoy the celebration. This apathy about how to worship the true God and its corresponding moral decay is the result of watering down truth, minimizing its authority, and appealing to people's base desires, that is, their human nature (Romans 8:7; I John 2:16).
Even some Christians who reject religious holidays with roots in paganism, like Christmas and Easter, see nothing wrong with holidays like New Year's Day, Valentine's Day, and Halloween despite their pagan origins . Their faulty human reasoning—their rationalization or justification for it—goes like this:
Christmas and Easter must be rejected because they attempt to worship God with pagan customs. The other holidays, though, while people may have once used them to worship God, are now deemed entirely secular. And since God actually forbids using pagan customs to worship Him, we are free to practice pagan worship customs if we are not now using them for worship purposes.
Yet, this bit of twisted logic ignores the fact that God tells the Israelites to eradicate all vestiges of pagan worship from their presence (Deuteronomy 12:2-4), not merely from their worship of Him. Moreover, the New Testament teaches that a Christian's life is to be one of worshipping and honoring God in all we do (I Peter 4:11).
We should see the things in which we participate in the context of bringing glory to Him. This does not mean we cannot have fun; God wants us to enjoy life. But our fun should not be independent of Him (see the principle in Ecclesiastes 11:9). All that we think, say, and do should be to the glory of God (I Corinthians 10:31)!
No true Christian in good conscience would want to be someone's Valentine, and he certainly would not wish someone a “Happy Valentine's Day!” We must speak the truth in godly love (Ephesians 4:15), not carnal lust. In its fleshly and sensual practices, Valentine's Day falls far short of “worship[ping] the Father in spirit and truth” (John 4:23).
Martin G. Collins
A Day of Lust, Not Love
God wants us to worship Him directly—not through an idol. When we set up an idol, we are in fact sacrificing to one or more demons! God wants us to worship Him humbly rather than the way the world worships idols. It is degrading to worship an idol. Conversely, God calls us into His own spiritual presence to worship Him directly. Whenever we stop short of our face-to-face relationship and worship of our sovereign God by placing a visible entity before Him, we break the second commandment. God looks to those who worship Him in humility and respectful fear and despises those who choose their own ways.
Martin G. Collins
The Second Commandment
To use Paul's analogy, our spiritual diet must not be a mixture of true and false doctrines. In this area of life, a mixture produces nothing good (James 3:11-12). We must make every effort to separate the true food from the false if we are to grow and qualify for the Kingdom of God. This is a responsibility that falls on each of us—we cannot leave it to others! We must acknowledge the source of the false teaching—Satan, his demons, and his false ministers—to truly appreciate the seriousness of heresy.
Like Peter, Paul warns about heresies within the church: "Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons" (I Timothy 4:1). The Greek word planos, translated as "deceiving" (NKJV) or "seducing" (KJV), is the same word from which we derive the English word "planet." It conveys the idea of wandering. To the astronomers of ancient Greece, the planets appeared to wander in a heaven populated by other, relatively fixed lights. Thus, evil spirits induce people to wander from the true path of God's Word. These are the principalities and powers against which we wrestle (Ephesians 6:10-12).
Heresy is not always easily detected because Satan usually camouflages the lie with a large measure of truth. He is a master of deceit. Because the people of the world are so ignorant of God, Satan can tell them virtually anything, and they will believe it. But with us he generally does not directly challenge or obviously and blatantly misquote Scripture. His confrontation with Jesus, beginning in Matthew 4:1, is a classic example. He subtly twists the intent of a scripture to bend it into a wrong application or understanding. At other times, he will appeal to our vanity to get us to react to his suggestions without thinking.
The Bible gives only a few specific doctrines with which seducing spirits, heresy or false ministers are directly associated. However, do not be fooled that so few doctrines are directly mentioned with the word "heresy" attached. No doctrine is sacrosanct to demons. They will attack the people of God in any spiritual area. The Bible makes it very clear that demons are our major, major enemies, and deception that leads us into sin is their game!
John W. Ritenbaugh
Damnable Heresies
Other Forerunner Commentary entries containing 1 Corinthians 10:20:
1 Corinthians 10:19-21