If Christmas is pagan, should Christians be involved?

Should Christians get involved in supporting or celebrating Christmas? Have you ever heard that argument? Why in the world would Christians want to get involved in something that was really a “pagan holiday,” that we the Church co-opted? So for those critics, I have three points.
Number one: Do you give your kids birthday gifts? You celebrate your kids birthdays, why not celebrate the birth of the Savior? If we’re not going to do it now, when would you decide to do it? That would be a question.
Secondly, in 1st Corinthians 9:22, Paul says, “I became all things to all men, that by all means I may win some.” I can’t think of a time, and I doubt that you could think of a time in the year when there is more focus on the birth of Jesus Christ. Once a year, the world is confronted with the reality of His coming. And I think that’s great!
The third point is in Matthew 16:18,where Jesus said, “On this rock, I will build my church, and the gates of hell shall not prevail against it.” The idea is not that we are holding out against the world. The idea is that we are assaulting a world and they cannot overwhelm us. They cannot withstand the assault of the Church. The very fact that you and I are here, 2000 years after the coming of the Lord Jesus Christ, is evidence of that. The world has done everything it can to squash the message, destroy the Word, and intimidate believers. Yet, all around the world today there are those who are singing praise, spreading the Word and sharing the gospel of Jesus Christ. So, if we co-opt or take over Christmas, that’s what we’re supposed to do. We’re supposed to seize the gates of the enemy. This is why we’re here and why this season is so important.

Gene Cunningham - June 10, 2003

Galatians 4

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Promises to Abraham through his "Seed": (1) depends upon Jesus Christ; (2) In Christ is rich inheritence (Heb 1:1-4). By the scope of Jesus Christ's work in His earthly life, He inherited all things (Heb 1:3-4). We also have an inheritence (Heb 1:14). We have to become one of the "just" to then "live by faith". We don't become an heir until we become a believer. Obedience is the criteria for reward (aka Noah, Heb 11:1, Heb 11:6-16). In scripture, the word "saved" does not always refer to initial justification by faith, but deliverance in time. The purpose of the law is to convince us of our sinfulness and to drive us to Christ not righteousness (Mat 26:39, Gal 3:21-25). "We" refers to Jewish believers in Paul's time (Gal 3:23-25). "You [Gentiles] are sons of God by faith in Christ" and baptized into Christ's death, burial and resurrection (Gal 3:26-27). Union with Him makes our salvation complete (1Co 12:13): (1) Death — penalty of sin is broken, (2) Burial — power of sin is broken, (3) Resurrection — the practice of sin is broken. Roman ceremony of becoming adopted as a full-grown son (i.e., "toga virilus") was in Paul's mind in the "put on Christ" imagery (Gal 2:27). Christ is the Robe of Righteousness believers wear. God has no elite children (Gal 3:28-29). Will there be any stars in your crown? Will you even have a crown? Christ the seed (Gen 3:15, Gen 12-28, Gen 49:10, 2Sa 7:12, Isa 7:14, Mat 1:23). Chapter 4 "Elements of the World" (Gal 4:3): Creation, Conscience, and the Law (Rom 2:14-15). Righteous requirement of the law: apenalty, and a blessing. We are adopted sons (Gal 4:5-6, Rom 8:9-11), and because of that heirs (Gal 4:7). All believers have a base inheritence (Tit 3:7, 1Pe 1:4-5). Above the basic inheritence — "heirs of God", there is opportunity for more — "joint heirs with Christ" (Rom 8:14-17, 2Ti 4:3, 2Ti 2:10).