Thanksgiving as evidence of true Christianity...

⁶ Therefore, as you received Christ Jesus the Lord, so walk in him, ⁷ rooted and built up in him and established in the faith, just as you were taught, abounding in thanksgiving. Colossians 2
The Apostle Paul elsewhere refers to a number of qualities as "evidence" of one's true conversion as a follower of Christ.  Here, in the midst of a warning to not be led astray by other false philosophies, traditions and viewpoints.  It's all about Christ - receiving Him as Savior, walking in relationship to Him, establishing our lives upon His, trusting in Him, and then, as if it's the final result having a life that is characterized by thanksgiving. The picture here is that we are not only full to overflowing with thanksgiving, but that it gushes from our lives.  May thanksgiving not only flow out of our lives, as we have received Christ and His continued blessings, but may it "Bounce Out", if you will, so others will see and know that it is "Christ in me."