“Therefore concerning the eating of things sacrificed to idols, we know that there is no such thing as an idol in the world, and that there is no God but one.” (1 Corinthians 8:4)
In today’s church, many people twist scripture to justify conforming to the world. Taking one verse out of the context of the whole of scripture might satisfy someone’s need to rationalize conforming to this world, but it’s not truthful. Paul spoke concerning food, and in particular eating out of necessity. For example, some of the early saints lived in households which were unsaved and ate food dedicated to various gods. In such cases, the idol was nothing. How can we come to this conclusion? In Acts 15:29, the new gentile converts were told NOT to eat thing sacrificed to idols, so it is clear from context that the permission given in 1 Cor. 8:4 is situation-specific, and not a green light to go and willfully participate in the worship of other gods.
Thus we must understand that when one believes that 1 Cor. 8:4 can be used to justify celebrating Valentine’s day or other pagan holidays, one has been deceived by the enemy.
You may not want to hear this, but then the Bible did warn that a time would come when people could not endure sound doctrine…