We all have eyes – the organs by which we may see ‘the light of the knowledge of the glory of God.’ We have all blinded ourselves by our sin. Christ is come to show us God, to be the light by which we see God, and to strengthen and restore our faculty of seeing him. If you welcome him, and take him into your hearts, he will at once be light and eyesight to you. But if you turn away from him he will be blindness and darkness to you. He comes to pour eyesight on the blind, but he comes therefore also, most assuredly, to make still blinder those who do not know themselves to be blind, and conceit themselves to be clear-sighted….
They who see themselves to be blind, who know themselves to be ignorant, the lowly who recognize their sinfulness and misery and helplessness, and turn in their sore need to Christ, will be led by paths of growing knowledge and blessedness to the perfect day where their strengthened vision will be able to see light in the blaze which to us now is darkness. They who say, ‘I see,’ and know not that they are miserable and blind, nor hearken to His counsel to ‘anoint their eyes with the eye salve that they may see,’ will have yet another film drawn over their eyes by the shining of the light which they reject, and will pass into darkness where only enough light and eyesight remain to make guilt. Jesus Christ is for us light and vision. Trust to him and your eyes will be blessed because they see God. Turn from Him and Egyptian darkness will settle on your soul. ‘To him that hath shall be given, and from him that hath not, even that which he hath shall be taken away.’
Alexander Maclaren on the Light of the World