Colossians 2:16–17 and the Christmas Question
Colossians 2:16–17 does not trace the origin of any holiday. It forbids one believer to condemn another over days, foods and drinks, because those shadows find their substance in Christ.
Romans 14:5–6: Christmas and Christian Conscience
Romans 14:5–6 addresses days and diets that God neither commands nor forbids, and it settles them by conscience rather than by rule. That means a Christian may keep Christmas or decline it, as long as the choice is made to the Lord and love governs the fellowship.