Many commentators have noticed the slight difference between the two references to the sea of glass in Revelation. In Revelation 4 the sea of glass is clear as crystal, while here in Revelation 15 it is "mingled with fire." The reference to fire (same word as the "fiery horse of the second seal) may suggest the bloody red color of the Red Sea after the destruction of the armies of Pharaoh. Exodus 14:30, 31, says, "That day the Lord saved Israel from the hands of the Egyptians, and Israel saw the Egyptians lying dead on the shore. And when the Israelites saw the great power the Lord displayed against the Egyptians, the people feared the Lord and put their trust in him and in Moses his servant" (NIV).
Sight is a blessing. It allows us to obtain a perspective that hearing and touching alone cannot give. One of the five senses, sight involves what photography refers to as "depth of field." Depth of field places the object focused on in a larger context that helps us to discern clearly what we are truly seeing.
For 430 years the Israelites lived in a foreign culture, subject to an oppression that altered their view of God. As a world power Egypt was unsurpassed, and the Israelites struggled with the temptation to think that their God was as weak as they were. The awesomeness of Egyptian polytheism had confused their minds. They needed the plagues to set them free spiritually as much as physically.
To see the Egyptian corpses on the seashore meant not only that their oppressors were dead, but that everything that Egypt stood for--wealth, splendor, intellectualism, military superiority, and religious influence--was now washed up on the sands of the Red Sea. For so long Israel had been impressed with a mirage. But now they could clearly see that what the Egyptians represented was inferior to the God who cared about Israel.
Since the fall of His creation, the Lord has been seeking to show us His hand in the world. All along God has permitted evil to coexist with the good, so that we might appreciate the significance of the good. But He has also promised that, if we obediently follow Him to the Land of Promise, He will put behind us all that has sought to deceive and destroy us. He will one day erase sin, death, and the grave (Rev. 20:6-15), and we will "see" our "spiritual Egyptians" dead on the seashore.
Lord, I need spiritual depth of field so that I can clearly discern truth in the midst of distracting alternatives.