And Jesus said to them, “I am the bread of life. He who comes to Me shall never hunger, and he who believes in Me shall never thirst. But I said to you that you have seen Me and yet do not believe. All that the Father gives Me will come to Me, and the one who comes to Me I will by no means cast out. For I have come down from heaven, not to do My own will, but the will of Him who sent Me. This is the will of the Father who sent Me, that of all He has given Me I should lose nothing, but should raise it up at the last day. And this is the will of Him who sent Me, that everyone who sees the Son and believes in Him may have everlasting life; and I will raise him up at the last day.” (John 6:35-40)
Jesus had just worked a mighty miracle of feeding over 5000 people (John 6: 10-14) as a setting for a plain talk on His true mission in the world. While He had spent much time ministering to men's bodily needs, the real purpose of His coming into the world was to save men's Souls. In the synagogue at Capernaum (John 6:59) Jesus takes the bread as His starting-point for a deeper lesson. And this lesson was that He came to provide "bread" that will satisfy more than physical hunger. Jesus is the bread God gives, the one who comes to give life to the world (John 6:33). Those who believe in Him will never hunger (John 6:35). When Jesus told them that, they all began to lose interest.