Although Hannukah (feast of dedication) is not a God created holy day, it is mentioned in the bible in a fashion that is not condemned. If Christ were born in 4 BC then I would also bet that he was conceived during the feast of dedication. But still that's a far cry from observing Christmas with it's problematic pagan origins, customs and practices.
Isaiah 55:13 records: "Instead of the thorn shall come up the fir tree, and instead of the brier shall come up the myrtle tree; and it shall be to the Lord for a name, for an everlasting sign that shall not be cut off".
The fir and the myrtle trees are evergreens, which literally means everliving or everlasting or never dying because they were evergreen all year round, especially during the time when everything else was dead in the dead of winter. And those red berries at Christmas time --- several kinds of evergreen myrtle trees have them. Not everything is what it appears on the face of it.