For, behold, darkness shall cover the earth, and gross darkness the peoples; but the Lord will arise on you, and his glory shall be seen on you. — Isaiah 60:2
Jesus said, "I came into this world for judgment, that those who don't see may see; and that those who see may become blind." — John 9:39

Author
Faustino de Jesús Zamora Vargas
Summary: Recognizing our spiritual blindness requires humility and courage. Unbelief keeps us in darkness: we think we can see, but sin prevents us from recognizing the truth, and we prefer to hide from the light. Faith is the only cure, though there is no formula for obtaining it; Abraham responded to God with obedience. Jesus alone can open our spiritual eyes and illuminate our hearts. Neither favorable circumstances nor self-sufficiency can replace his light. If we have Christ, we must let him shine into our dark places too. Walking as children of light does not mean shining by our own power: we receive his light to bear witness to him and help overcome unbelief.
Recognizing spiritual blindness requires courage and humility. True conversion is an act of submission before God. Unbelief makes you a sinner. To walk “dead in trespasses and sins” is to live condemned to darkness. The story of creation tells us that darkness and chaos ruled the earth. That is why, on the first day, God created light
: Then God said, “Let there be light.” And there was light. (Genesis 1:3).
Man sees, but he does not discern with his eyes because he is blind. His blindness keeps him from distinguishing where the truth lies. He thinks he can see, but he constantly stumbles. Unaware of his lack of sight, he lives as though he could truly see, yet dies each day for lack of light. Unbelief is the absence of light. The gospel is light. “And this is the judgment: that the light came into the world, and people loved darkness more than light, because their deeds were evil” (John 3:19). This is the point: man’s deeds keep him from seeing the light.
The only cure for blindness is faith. But there is no recipe for faith. From the beginning, man loved darkness more. Adam was expelled from Eden on the very day God created him; Noah did not meet the Creator’s expectations either. The man who would answer God’s question—“Where are you?”—would appear twenty generations after Noah. When God commanded him to go out and leave his land and kindred to fulfill His purposes and His will, Abraham said, “Yes, Lord, here I am!”
From Abraham to Christ, man’s blindness grew worse. It became a way of life. Man still prefers what is hidden because he believes darkness conceals his sin from human eyes and from God’s eyes. Either the world or God. God sets rules that the world refuses to obey, and the world lives in darkness because of its unbelief. For those who love the light, it is not the sun that rises, but the face of Christ: For God, who said, “Light shall shine out of darkness,” is the One who has shone in our hearts, to illuminate the knowledge of the glory of God in the face of Christ (2 Cor 4:6)
Jesus is the only one who can illuminate spiritual eyes and give sight to the blind today—to those who have eyes but cannot see. There is bad news for anyone who thinks he can see and happily professes his unbelief. They will be blinded by their vanity. Because of their self-sufficiency, their eyes will not see. God offers His light to those who want to see; to reject it is to remain in darkness. He who called us out of darkness into His marvelous light (1 Peter 2:9) is only a spiritual blink away. Unbelief has consequences. Opening your eyes to Christ is opening your eyes to the light.
If you think you are enlightened because life is smiling on you, but you do not have Christ, you live only under artificial illumination. If you say you have Christ but still continue to be the light of your own life, then there are dark places you must uncover and allow Him to illuminate with His light.
The Word of God says: “for once you were darkness, but now you are light in the Lord; walk as children of light” (Eph 5:8). Being light in the Lord does not mean that we are the source of light, but that the Lord is the source that powers the light and shines His light on us so that we may bear witness to Him. He alone can be the light.
When Jesus appeared to Paul and Paul was converted, He left him blind for three days (Acts 9:9). On the third day, Paul was filled with the Holy Spirit, and “immediately something like scales fell from his eyes, and he regained his sight” (Acts 9:18). You can be a therapist for the Lord and make the scales fall from the eyes of a world that does not want to see the glory of God. You can walk in the light in the Lord and work with Him to bring down the sin of unbelief.
God bless you!