No matter what happens, always be thankful, for this is God’s will for you who belong to Christ Jesus. 1 Thess. 5:18 (NLT)
In the New Testament, gratitude and appreciation expressed in thanksgiving, has three primary associations. The first, thanks is given at the communion service (Eucharist) for the broken body and blood of Jesus (Matt. 26; Lk 22; 1 Cor. 11); the second time, thanks is given for the blessings that come through Jesus Christ (2 Cor. 2:14; 9:15) and finally, thanks is given for those who come to know Christ and who bring joy to the Apostle Paul (Col. 1:3; Eph. 1:16).
In his letters to the early church and ministry, the Apostle Paul lavishly expressed gratitude to those he wrote to for their role in both receiving the Gospel and in extending God’s “hope of salvation” to others within their immediate sphere of influence. Paul was well acquainted with the power of gratitude (Ep. 1:15-19; Phil. 1:3-4).
Because gratitude is critical to not only individuals but also to the health of society in general, new focus is being placed on how to increase its occurrence. Recent studies in the area of psychology confirm that we can intentionally cultivate gratitude with the consequence being increased well-being, joy and happiness.
In addition, gratefulness, especially expression of it to others, is associated with increased energy, optimism, and empathy. The positive psychology movement has embraced these studies and in an effort to increase overall well-being, has begun to make an effort to incorporate exercises to increase gratitude into the movement.
It is God’s will that in everything, we give thanks. It is not God’s will that we express gratitude for “gratitude’s sake only” but because with the giving of thanks, His power can be released into our life in ways never before seen. This includes the formation of incredible joy, unshakeable hope, and unbroken peace (1 Pet. 1:2-4). The outward expression of appreciation to God and others, works to bring new power and access that, under other circumstances, would be unattainable.
As we examine our walk of faith, we must ask ourselves, “Am I harnessing the full power of gratitude?” “Am I receiving the benefits of gratitude that are now available to me?” According to the Greek writer and philosopher, Cicero, “Gratitude is not only the greatest of the virtues but the parent of all others.” Maybe it’s time for you to begin engaging in gratitude power.
 Wikipedia, “Gratitude”.