Yet, I am poor and needy; come quickly to me, O God. You are my help and my deliverer, O Lord, do not delay.
This seems to say, “though I am small and of not much importance, there is no one else who is my savior”. it is a desperate plea of a desperate man for the Great Helper to come quickly to his aid. I think a mere man cannot call on the only true God of the universe in this way, unless he knows Him personally and intimately. Because of Jesus, we have this privilege.