“Jesus said to him, I am the way, the truth, and the life: no man comes to the Father, but by me.” (v.6)
Here Jesus is saying He is the way to heaven and all those who wish to go there, must come through Him. By His sacrifice, He became the way of salvation itself and there is no other name under heaven by which one can enter in.Jesus is also declaring Himself to be the truth, meaning truth itself. He is the fulfillment of all the prophecies of the savior, the true way to eternal life purchased through His obedience to death, even the death of the cross. Furthermore, Jesus is life, both the principle source of life, and life in the future world. He is the author and giver of life; natural, spiritual, and eternal.
Finally, He is the only way of access to the Father. There is no coming to God on our own merit or without a mediator. Christ is the only mediator between God and man, and there is no coming to the Father but by Him.
The Truth: "I Am the resurrection and the life. He who believes in Mw, though he were dead, yet shall he live. And whoever lives and believes in Me shall never die." (John 11:25-26)