My help cometh from the Lord - From Yahweh. This is the answer to the anxious inquiry in Psalms 121:1. It indicates
(a) a consciousness that help could come only from God;
(b) a belief that it would come from him; and a confident yet humble reliance on him.
Which made heaven and earth - The great Creator of the universe. He must, therefore, be able to protect me. The Creator of all can defend all.