“What Jesus desires of us is not the observance of things He did not command, but the things He did command. “Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: Teaching them to observe all things whatsoever I have commanded you” (Matt. 28:19, 20). This is what the Apostles did. They taught the whole counsel of God (Acts 20:27). It did not include Christmas, Good Friday, or Easter, because they were not part of the things commanded by Christ. So, the one who understands “the true meaning of Christmas” (or Good Friday, or Easter) is precisely the one who realizes that they are human inventions. And in order to honor Christ as the only king and head of the church, such a person will not observe these man-made additions to what our Lord commanded. A person such as this may be out of step with a very popular custom. The important thing is that he will be in step with Christ and the apostles.”
 G. I. Williamson, On the Observance of Sacred Days (Havertown: New Covenant Publication Society, n.d.), 9-10.