Right, I found the video. While there is no scripture addressing Christmas since it did not exist at that time, it is saying that that it is not ok to worship with pagan practices as long as in our hearts we worship Jesus. Christmas is a tradition of men, not of Christ.
So there are several scriptures warning against following traditions of men such as:
Mark 7:6-9 (ESV) And he said to them, “Well did Isaiah prophesy of you hypocrites, as it is written,
“‘This people honors me with their lips, but their heart is far from me; in vain do they worship me,
teaching as doctrines the commandments of men.’
You leave the commandment of God and hold to the tradition of men.”
And he said to them, “You have a fine way of rejecting the commandment of God in order to establish your tradition!
Mark 7:13, KJV: "Making the word of God of none effect through your tradition, which ye have delivered: and many such like things do ye."
Colossians 2:8, NIV: "See to it that no one takes you captive through hollow and deceptive philosophy, which depends on human tradition and the elemental spiritual forces of this world rather than on Christ."
I try not to celebrate it myself with anyone around me but sometimes it is impossible when they are here. i try to Keep my thoughts on Christ as best as I can.
For Mike, yes it is a very tricky subject because he is 21 now and is an intelligent person but still has the mind of a child in some ways.
This is the video which in my opinion a great video detailing everything about Xmas and Scriptures:
www.youtube.com/watch?v=YEDXBmMv5zE