Thy way is in the sea, and thy path in the great waters, and thy footsteps are not known. Thy way is in the sea - Thou didst walk through the sea, thy path was through a multitude of waters.
Thy footsteps are not known - It was evident from the effects that God was there: but his track could not be discovered; still he is the Infinite Spirit, without parts, limits, or passions. No object of sense.