Okay Bm, this is for you.
http://en.wikipedia.org/wiki/Christmas_tree.
Read it and weep, one of the sourches says PRE Christian! Older (and better) religions have already used a tree before. Yggdrasil for example, the tree that binds the nine worlds in Norse cosmology together. The tree was invented far after writing the bible.
"One Strasbourg priest, Johann Konrad Dannerstuart, complains about the custom as distracting from the Word of God."
Hows that? Some Christians were against the tree. My grandfather (ironicly strict Christian) refuses to have a Christmas tree in the house, saying it's anti Christian. Now you.