Albert Barnes Commentary Psalms 123:1

"Unto thee do I lift up mine eyes, O thou that sittest in the heavens." — Psalms 123:1 (ASV)

To you - To God.

I lift up my eyes - In supplication and prayer. Nature prompts us to look up when we address God, as if he dwelt above us. It is the natural prompting of the heart that he must be the most exalted of all beings, dwelling above all. See Psalms 121:1.

O You who dwell in the heavens - Whose home - whose special home - is in heaven, above the sky. This is in accordance with the common feelings of people and the common description of God in the Bible, though it is also true that God is everywhere. Compare Psalms 2:4; Psalms 11:4.