In the Holy Injil Jesus the Messiah proclaimed Himself to be the source of life and security through a series of "I am" sayings.  In some cases, the use of the words "I am" drew a violent response from Jesus' Jewish hearers, especially when they were given in response to questions about His relationship to God.

I am the bread of life     John 6:35 (NIV)                                            Then Jesus declared, "I am the bread of life. He who comes to me will never go hungry, and he who believes in me will never be thirsty."

I am the vine     John 15:5 (NIV)                                                            "I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing."