It is much easier to say “I am thankful” than to say “thanks be to God–through Jesus Christ our Lord!” [as Paul did in Romans 7:25]. The first doesn’t commit you. It’s broad enough to afford foot room to retreat if someone should challenge you. The second burns its bridges and takes up its cross.
“Accept, O Lord, my thanks and praise for all that you have done for me. I thank you for the splendor of the whole creation, for the beauty of this world, for the wonder of life, and for the mystery of love. Above all, I thank you for your son Jesus Christ; for the truth of His Word and the example of his life, for his steadfast obedience, by which he overcame death, and for his rising to life again, in which we are raised to the life of your kingdom.”