George Ganssle’s protest got my attention, and I must respond. For one thing, God’s glory is yet to be revealed to us, as say in the Transfiguration, or in the beginning of Revelations as St. John describes the vision of Jesus in which he falls to the ground in awe. However, I also believe we see a glimpse of God’s glory in His creation, the world around us: we see the beauty in the blue sky with clouds and sun, or the moon and stars at night. We see a glimpse of God’s glory in a baby, life, the epitome of God’s creation.
God’s glory is a promise to the faithful, which He will share with us upon entering into heaven, so it is not nonsense to thank Him ahead of time in hope that one day He might share His glory with us.
You say you are a simple truck driver, but if you think about God’s creation, then I bet you will be able to comprehend His glory and you will want to thank Him.