Thanksgiving should be at the heart of our celebration
Think about how often in a day someone does something for you, however small. How often do you say thanks? Now think about how often God helps you in a day. Think about how much God has given you. How often do you say thanks to him? Thanksgiving is a celebration of the giver and the gift. We should celebrate often.
God is not against celebration!
He wants us to celebrate, but for the right reasons.