While we certainly should keep Christ in Christmas, we need to keep Him in Thanksgiving too.
In Reformed theology giving thanks has always been the major reason for keeping the law of God. The Heidelberg Catechism even puts the exposition of the Ten Commandments under living in thanksgiving for salvation.
So this thanksgiving, let us reflect on whether we are constantly and diligently praying to God for the grace of the Holy Spirit so that we will be able to keep the law more and more, even though we will make only a small beginning in obedience during this life.
Reflect on your inability to keep the law of God and give thanks to God for the righteousness of Christ imputed to you.
Or if you are not a Christian, ask yourself if you could ever thank God with your imperfect and small tokens of goodness or good works. He does not need your thanks. Go before God with empty hands to receive the gift of faith if He should choose to bestow it upon you. And then start giving thanks to God by cleaning up your life.
Soli Deo Gloria…to God alone be the glory. Amen.