If... — Literally,
I lift wings of dawn
I dwell in the end of the sea.
The wings of the morning. — This exquisite image suggesting not only the pinions of cloud that seem often to lift the dawn into the sky, but also the swift sailing of the light across the world, may be compared to the “wings of the sun” in Malachi 4:2, and the “wings of the wind” in Psalms 18:10.
The uttermost parts of the sea — i.e., to a Hebrew the extreme west. The poet imagines himself darting from east to farthest west, with the rapidity of light.