"Thankfulness"
"Thankfulness" …
… said Dr. Martin Luther, "is a virtue characteristic of real Christians; it is their worship of God at its best. They thank God and do it with all their hearts." Luther went on to say, "To thank with all your heart is an art—an art taught by the Holy Spirit. You need not worry that the man who can say, 'Thanks be to God' with all his heart will ever be proud, stubborn, or will work against God with his gifts."