1 Peter 2:4-5New King James Version (NKJV)
The Chosen Stone and His Chosen People
4 Coming to Him as to a living stone, rejected indeed by men, but chosen by God and precious, 5 you also, as living stones, are being built up a spiritual house, a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ.
New King James Version (NKJV)Scripture taken from the New King James Version®. Copyright © 1982 by Thomas Nelson. Used by permission. All rights reserved.
The Christ Mass, aka, Christmas, is not spiritually of God and is to be utterly avoided by His chosen as our sacrifice acceptable to Him. So, also, all of our pagan traditions of which things He hates should be shunned. Be holy as He is holy, that is, be set apart from the world and be for Him a witness to the only true God and Father of Christ Jesus.