John 12:35) So Jesus said to them, You will have the Light only a little while longer. Walk while you have the Light [keep on living by it], so that darkness may not overtake and overcome you. He who walks about in the dark does not know where he goes [he is drifting].
Jesus was telling them He would only be with them a little while longer.
Walk while you have the light, so that darkness may not overtake you. Can darkness overtake us? Can we be overcome by darkness? If you don't walk in the light with Jesus you could be overtaken by darkness. That seems to be a blindness. So if you are not walking with Jesus you could become blinded. I think we are blind at times. Like at different stages of growing in Christ, when you are able to "see" or understand more, then you realize that you had been blind before. Did that make sense? Hope so.
This may explain what I'm thinking from John 16:12) "I still have many things to say to you, but you cannot bear them now.
I remember reading that and thinking that is the way with us, there are times we are not ready to "hear" or understand the deeper things that God wants to reveal to us. Anyway, I was just thinking on the possiblities of darkness and blindness.
36) While you have the Light, believe in the Light [have faith in it, hold to it, rely on it], that you may become sons of the Light and be filled with Light. Jesus said these things, and then He went away and hid Himself from them [was lost to their view].
Believe in the light, believe in Jesus, stay close to Him, let His light shine on you, be filled with His light.
37) Even though He had done so many miracles before them (right before their eyes), yet they still did not trust in Him and failed to believe in Him--
This I can't comprehend, how they could have stood right in Jesus' presence and seen the miracles He did right before their very eyes and they still did not believe Him.
38) So that what Isaiah the prophet said was fulfilled: Lord, who has believed our report and our message? And to whom has the arm (the power) of the Lord been shown (unveiled and revealed)?
39) Therefore they could not believe [they were unable to believe]. For Isaiah has also said,
They were unable to believe. Why were they unable to believe? Thats a scary thought and also sad. Is it this way now too with those who can't believe? Is it that they are unable? Is it because they have refused for so long and have hardened their hearts, that now they have become unable? As in Isaiah the people were so stubborn, refusing to believe, they hardened their own hearts and the Lord them be.
40) He has blinded their eyes and hardened and benumbed their [callous, degenerated] hearts [He has made their minds dull], to keep them from seeing with their eyes and understanding with their hearts and minds and repenting and turning to Me to heal them.
41) Isaiah said this because he saw His glory and spoke of Him.
Just a few thoughts and maybe a little rambling this evening.