In the case of the God of the universe, such possibility of return [reciprocation for a favor bestowed] dissipates, as no human beings can offer anything in return that can do justice to the gift received. The only proper response, then, is praise and worship. In describing divine-human encounter, therefore, thanksgiving and praise understandably merge and become the one and only proper and response to God who is the source of all power and goodness.
In short, to offer thanks to God is to live a life of worship.
—David W. Pao, Thanksgiving: An Investigation of a Pauline Theme, 28, 164