|Photo from Microsoft Clip Art|
When Jesus performed a miracle, it was preceded with thanksgiving. "Father, I thank you ... " and the dead would be raised, the blind would see, the multitudes would be fed. Eucharisteo - thanksgiving - always preceded the miracle.
But there is more. Ten lepers where healed and one came back to Jesus with a thankful heart. Luke 17:17 tells us that Jesus spoke to the returning-thankful-cleansed-leper, "Rise and go; your faith has made you well."
Made him well? Jesus had just healed him! Young's Literal Translation states "thy faith has saved thee." Made well, in the Greek, comes from sozo. True it means to be 'well' or 'whole' but the literal meaning is 'to save'. Sozo means salvation true wellness, complete wholeness! When did the leper become completely whole? After he showed his gratitude.
Even the book of Psalms has an understanding that our gratefulness prepares the way for us to receive our salvation. Psalm 50:23, "He who sacrifices thank offerings honors me, and he prepares the way so that I may show him the salvation of God".
We need the fullness of our salvation to become free of hurt, anger, sadness, pain, fill-in-the-blank sin nature. We receive the fullness of our salvation when we are thankful.