The short of it: The church of the Lord Jesus Christ does not celebrate Christmas as a religious holiday. The New Testament knows nothing of Christmas. First-century Christians had no yearly Yule. Our faith is based upon Scripture. The celebration of Christmas is a later addition. The only special day celebrated in the Bible is every first day of the week, when Christians meet and break bread around the Lord’s table.
Since many religious folk think about Christmas as the birth of Christ, however unlikely that connection, sometimes we talk about his birth in order to direct attention to his divinity, his mission, his death, burial and resurrection, his return to heaven, and his second coming in power.
After all, he is our constant subject.
“Christ is everything” Cl 3.11 NIRV.