Charles H. Spurgeon on Psalms 123:2

As the eyes of slaves, watching anxiously the least movement, the Smallest sign of their master's will. The image expresses complete and absolute dependence. Savary (in his Zetters on Egypt, p. 135), says, "The slaves stand silent at the bottom of the rooms with their hands crossed over their breasts. With their eyes fixed upon their master they seek to anticipate every one of his wishes." ...In the Psalm the eye directed to the hand of God is the "oculus sperans", the eye which waits, and hopes, and is patient, looking only to him and none other for help. —J.J. Stewart Perowne.