Though they had been present when [Jesus] gave so many signs, they did not believe in him; this was to fulfil the words of the prophet Isaiah: Lord, who has given credence to what they have heard from us, and who has seen in it a revelation of the Lord’s arm? Indeed, they were unable to believe because, as Isaiah says again: He has blinded their eyes, he has hardened their heart, to prevent them from using their eyes to see, using their heart to understand, changing their ways and being healed by me. Isaiah said this because he saw his glory, and his words referred to Jesus. And yet there were many who did believe in him, even among the leading men, but they did not admit it, because of the Pharisees and for fear of being banned from the synagogue: they put human glory before God’s glory. Jesus declared publicly: Whoever believes in me believes not in me but in the one who sent me, and whoever sees me, sees the one who sent me. I have come into the world as light, to prevent anyone who believes in me from staying in the dark any more. If anyone hears my words and does not keep them faithfully, it is not I who shall judge such a person, since I have come not to judge the world, but to save the world: anyone who rejects me and refuses my words has his judge already: the word itself that I have spoken will be his judge on the last day. For I have not spoken of my own accord; but the Father who sent me commanded me what to say and what to speak.