“So when He had washed their feet, taken His garments, and sat down again, He said to them, ‘Do you know what I have done to you? You call Me Teacher and Lord, and you say well, for so I am. If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another’s feet. For I have given you an example, that you should do as I have done to you. Most assuredly, I say to you, a servant is not greater than his master; nor is he who is sent greater than he who sent him.’” John 13:12-15.
“Then Jesus spoke to them again, saying, ‘I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.’” John 8:12.
“The Jews then murmured against Him, because He said, ‘I am the bread which came down from heaven.’ And they said, ‘Is not this Jesus, the son of Joseph, whose father and mother we know? How is it then that He says, “I have come down from heaven”?’” John 6:41-42.