“I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life.”
“While I am in the world, I am the light of the world.”
Jesus was the light of the world at the beginning as He will be at the end. “And God said, ‘Let there be light…” Genesis
“The city does not need the sun or the moon to shine on it, for the glory of God gives it light, and the Lamb is its lamp.”  Revelation
Jesus tells us that while He was walking on this earth, He was the light of the world. He no longer walks on the earth as a human man. When He left earth He promised His disciples He would send them the Holy Spirit. When we have the Holy Spirit living in us, we are the light of the world.

Jesus had no problem telling the Jews the way things really were with them. He rebuked them openly, even saying to them that they belong to their father, Satan.
“When he lies, he speaks his native language.”

“…before Abraham was born, I am!” Jesus establishes himself as the Divinity. He has no past tense, no future tense, but always the present.
Jesus is the “I AM” of the Old Testament. Jesus is not the “I was” or the “I will be”. He is the “I AM!” And always will be!

Jesus heals the blind man but notice the man doesn’t believe in Jesus at first. In fact he seems to not really know who Jesus is. When he is questioned by the Jews he is beginning to believe. “If this man were not from God, he could do nothing.” The Jews threw him out of the temple. They not only threw him out of the building, but by implication, excommunicated him. When Jesus finds the man he asks if he believes. This is the first time the man has actually seen Jesus. When Jesus healed him, the man had to go to the pool to wash before his sight was restored. The man’s response to Jesus’ question, “Lord, I believe.” Not only did Jesus open the man’s eyes, but He opened his “eyes” of understanding as well.

“…the man who does not enter the sheep pen by the gate but climbs in by some other way, is a thief and a robber.” Only through Jesus is salvation. He makes it pretty plain!

“The watchman opens the gate for him…” God, the Father, is the watchman.

“…He calls his own sheep by name…” He knows us and calls us by name.

“…his sheep follow him because they know his voice…” We know Him and know His voice and follow Him. If we really know Him, we will be able to recognize false teachers and false teaching.

Jesus identifies himself as the gate. He tells us that He has come that we might have life abundant. That doesn’t just mean everlasting life. He has come so that we may have an abundant life here on this earth.

“…but I lay it down of my own accord…”
Jesus willingly allowed himself to be arrested and crucified. Are all of us as Believers in Jesus willing to lay down our own lives in service to Him?