Albert Barnes Commentary Psalms 121:2

"My help [cometh] from Jehovah, Who made heaven and earth." — Psalms 121:2 (ASV)

My help comes from the Lord – from Yahweh. This is the answer to the anxious inquiry in (Psalms 121:1). It indicates:

• A consciousness that help could come only from God;
• 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.