Yule is the winter holiday celebrated by most pagan faiths. It's pre-Christian roots are Norse/Germanic when December would have been a month of celebrations at getting to mid winter marked by the Winter Solstice, the longest night of the year. The god Wodan/Odin was the god of Yule being the leader of the Wild Hunt which calls the dead and takes them to their resting place. Holle in the German tradition shares the lead of the Hunt and the Yule celebration. The first of 12 Nights of Yule is Mother's Night where the disir are honored running to New Years. Pork, boards, logs, goats and ale. Basically feast were held so food stores were shared and saved to get to spring. Singing, honoring the gods of the dead and fertility (Freyr is represented by boards and pork) and drinking to our honored dead were done.
Now with all that said what parts of the Bible give Christians permission to engage in Yule celebrations. Other than Jesus almost nothing about Christmas traditions is Christian. Atheists will high jack anything and call it secular but Christians engaging in pagan ritual is concerning, don't you think?