Positively, he tells us who he is. Negatively, he cautions about the useless supposed alternatives (except comes from “if not”, ει μη, ei me, AY MAY).
Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father except through Me. John 14:6 NKJV
The good news is embedded in this saying: that there is no reality beside the loving Saviour. “Way, truth, and life” is akin to saying “Road, Vehicle, and Destination”. This encourages total and exclusive interest in the Son of man.
When it comes to Father-connection there is no-one else and nothing else that can make it happen. If one tries other means to adoption, death prevails because coming to the Father means life.
We were dead, going nowhere, for not believing and now we live, journeying as prescribed: Yeshua, the Road, Vehicle, and Destination”.