Then Jesus said unto them, Verily, verily, I say unto you, Moses gave you not that bread from heaven; but my Father giveth you the true bread from heaven. For the bread of God is he which cometh down from heaven, and giveth life unto the world. Then said they unto him, Lord, ever-more give us this bread. And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst.
(Gospel according Saint John: 6: 32 - 35)

This is my commandment, that ye love one another, as I have loved you. Greater love hath no man than this, that a man lay down his life for his friends.
(Gospel according Saint John 15: 12-13)

And he answering said, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy strength, and with all thy mind; and thy neighbour as thyself. And he said unto him, Thou hast answered right: this do, and though shalt live. (Gospel according Saint Luke 10:27-28)

Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way ? Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me. If ye had known me, ye should have known my Father also: and from henceforth ye know him, and have seen him.
(Gospel according Saint John: 14: 5-7)