When you think of the word "holiday" you most likely don't think of it as a holy day unless you are a practicing pagan, Satanist, or witch.
The word holiday comes from the Old English word hāligdæg (hālig "holy" + dæg "day"). The word originally referred only to special religious days. The modern use varies geographically. In North America, it means any dedicated day or period of rest or relaxation.
Just as Israel had holy days which were established by YhWh, the ancient pagans (Gentiles), had the holy days which were established based upon their belief system of idol worship, and seasons. Most pagan holy days involved an offering or sacrifice of some sort, whether it be a burnt offering of animals, or humans, or the participation in some type of feast of revelry with drink offerings that the congregants would themselves consume. Even in today's modern-day observance of these pagan holy days, participants naively hold feasts, partake of alcoholic beverages, give gifts to one another, and in the more plainly obvious celebration of Halloween, the giving of gifts (sacrifices) to demons and the dead as a type of appeasement
Many people would argue these holidays (holy-days) are harmless fun, but what does the bible say about partaking in these gentile holy days?1 Corinthians 10:20
“But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.”
So according to 1 Corinthians 10:20, the Gentiles sacrifice to devils and not to God. So think about this for a moment if you will, Even though man will profess loudly, "Jesus is the reason for the season" during Christ-mass time on December 25th, Is Jesus really the reason for the seasonal celebration observed during the winter solstice, a pagan holy day... Of course not! Again, according to the bible, it is a sacrifice to devils or fellowship with devils