Answer:
Oh lord! I am not worthy! I bend my limbs to the ground. I cry yet without a sound. Let me drink of waters deep. And in silence I will weep.
I save lives on the ground and in the air
You heard me before and then again. Afterward I die until you call me again.
I have more shoes than anybody, but less feet than everyone. I am met in the morning, but departed in the night. I may shake as if I'm angry, but I won't bite. What am I?
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.