Thanksgiving is not an attitude for one time a year but a consistent mindset for life.
The celebration of thanksgiving is not a new thing nor is it an American thing. No this goes back to ancient times in Hebrew culture, in fact, Thanksgiving feasts are God’s idea. If you look back in Leviticus you will see instructions for how to do thanksgiving sacrifices and they had festivals for thanksgiving like the festival of booths or tabernacles. God instituted regular times of thanksgiving for a reason. Why? Because our thanksgiving doesn’t come from our circumstances but it comes from knowing and experiencing God.
In Psalm 100, the psalmist instructed all the earth to offer thanksgiving to the Lord because of who He is. We too can offer thanksgiving to the Lord.