Reasons that Christmas is irrelevant or evil:
1.
God never commands you to celebrate Christmas in the Scriptures. If he cared so much about it, he would. Therefore, celebrating Christmas pleases God about as much as getting a whopper at Burger King. So God simply does not care about the holiday - it is irrelevant from a theological point of view.
Christmas, whether it was originally pagan or not, is the invention of men, not of God. God does not command it and therefore it is simply irrelevant to him.
2.
There are passages in Scripture that seem to indicate that various customs observed at Christmas are pagan. For example:
"Hear the word which the Lord speaks to you, O house of Israel. 2 Thus says the Lord,
Do not learn the way of the nations,
And do not be terrified by the signs of the heavens
Although the nations are terrified by them;
3
For the customs of the peoples are [a]delusion;
Because it is wood cut from the forest,
The work of the hands of a craftsman with a cutting tool.
4
They decorate it with silver and with gold;
They fasten it with nails and with hammers
So that it will not totter.
5 Like a scarecrow in a cucumber field are they,
And they cannot speak;
They must be carried,
Because they cannot walk!
Do not fear them,
For they can do no harm,
Nor can they do any good." Jer. 10:1-5 (NASB)
This is exactly what happens at Christmas - a tree is cut down out of the forest and decked with silver and gold. This is mentioned as a pagan custom in Jeremiah 10.
Another example:
"10 And those who dwell on the earth
will rejoice over them and celebrate; and they will send gifts to one another, because these two prophets tormented those who dwell on the earth." Rev. 11:10 (NASB)
At the death of the two witnesses they that dwell upon the earth (i.e., the pagan nations) have what looks quite eerily like a Christmas celebration. They all get together, rejoice, make merry (celebrate) and send gifts to one another - exactly what happens at Christmas. This argues that Christmas is in fact pagan because the peoples of the world celebrate it when the two witnesses die.
Another example:
"9 But now that you have come to know God, or rather to be known by God, how is it that you turn back again to the weak and worthless [
h]elemental things, to which you desire to be enslaved all over again? 10
You observe days and months and seasons and years. 11 I fear for you, that perhaps I have labored [
i]over you in vain." Gal. 4:9-11 (NASB)
Paul writes here in the context of Jewish holidays, and notes that the Galatians are observing days/months/seasons/years. He wonders if they desire to be again in bondage. The point that Paul is making is that the celebration of these holidays is irrelevant to God.
That was in the context of Jewish holidays. The same thing would apply to us, in the context of the world's festivals.
3.
There are lies associated with Christmas (and also with Easter). For example, Santa Claus, his reindeer, and his elves, are are all lies (not to mention the Easter bunny as well). The Bible says this about God:
"2 in the hope of eternal life,
which God, who cannot lie, promised [
b]long ages ago" Titus 1:2 (NASB)
Therefore, Santa Claus, his reindeer, his elves, and the Easter bunny, are not of God, because they are all lies and myths. However, Satan is mentioned as the father of lies in the Scripture, which means that all lies ultimately have their source in Satan:
"44 You are of
your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth because there is no truth in him.
Whenever he speaks [n]a lie, he speaks from his own nature, for he is a liar and the father of [o]lies." Jn. 8:44 (NASB)
Since Santa Claus and the Easter bunny are lies, they cannot possibly be of God. Christ says Satan is the father of lies, so that means that Santa Claus and the Easter bunny are of Satan.
In addition, it is interesting to note that the name "Santa" when the letters are rearranged, in fact spells "Satan." Just take the "n" in Santa and move it to the end.
4.
Christmas has honestly become a holiday that is all about money/merchandise/covetousness for many. Christ says that that which is highly esteemed in the sight of men is an abomination in the sight of God, and he was referring to covetousness:
"14 And the Pharisees also, who were covetous, heard all these things: and they derided him.
15 And he said unto them, Ye are they which justify yourselves before men; but God knoweth your hearts: for
that which is highly esteemed among men is abomination in the sight of God." Lu. 16:14-15
Christmas has also become about the physicalities/externalities/appearances. God does not care in the slightest about the appearance (man looketh on the outward appearance, but the LORD looketh on the heart). In other words, Christmas has become all about the flesh.
5.
Those who make the argument that Christmas makes people 'more religious' or makes people 'closer to God' don't seem to realize what they are saying. Where are these people the rest of the year? Where is the high rate of church attendance the rest of the year? Isn't this rather showing the high level of hypocrisy - that it takes an international holiday to get you to go to church?
True christianity is not displayed one week out of the year, sorry. If anything, this just shows how in tatters modern christianity really is.
Conclusion
We have seen that celebration of Christmas is not something that is relevant for the Christian today. God does not command it anywhere in Scriptures - in fact it seems that it may even be pagan in nature. Those who do not wish to celebrate Christmas with the rest of the world are committing no offense against God. Christmas is a man-made holiday, not God-made. In short, we have proven that celebration of Christmas today is either irrelevant or evil, theologically speaking.