I'm going to review the poem on its own, cause there's really no commenting Psalms. :P Two things that I didn't feel good about this poem: the combination of "falling" and "high low" within a span of two lines from each other made things a bit confusing image-wise and the ending two lines seemed out of place. I wonder if you could symbolize or express the final thought in a more descriptive or poetic manner than a piece of whispered dialogue. Just a suggestion.
However, I loved how you were able to use repetition to give the poem its mood, particularly in the second half of the poem. The repetition really made the poem read a whole lot better.