“And Jesus said, ‘For judgment I have come into this world, that those who do not see may see, and that those who see may be made blind.’ Then some of the Pharisees who were with Him heard these words, and said to Him, ‘Are we blind also?’ Jesus said to them, ‘If you were blind, you would have no sin; but now you say, “We see.” Therefore your sin remains.’” John 9:39-41.
“Most assuredly, I say to you, he who does not enter the sheepfold by the door, but climbs up some other way, the same is a thief and a robber. But he who enters by the door is the shepherd of the sheep. To him the doorkeeper opens, and the sheep hear his voice; and he calls his own sheep by name and leads them out. And when he brings out his own sheep, he goes before them; and the sheep follow him, for they know his voice. Yet they will by no means follow a stranger, but will flee from him, for they do not know the voice of strangers.’” John 10:1-5.