The Bible does not explicitly mention Christmas trees, but there are references to evergreen trees and branches being used in religious ceremonies and celebrations. For example, in the Old Testament, King Solomon is said to have decorated his palace with gold and silver trees. In the New Testament, the Christmas story describes the birth of Jesus in a manger, which was likely a small wooden structure. While there is no direct mention of Christmas trees in the Bible, they have become an important part of modern Christmas traditions and celebrations.