Why are you using the book of the Jews when you say that Jesus Christ said when he was on the cross (Im the beggining and the end)?
4. Jesus christ with his nature that God gave him said that the only way to know God is by knowing him; in consequence, (Jesus having some of the charateristics of God) can be known by being good in nature and has nothing to do with the belief i.e. some of the people who believes in Jesus Christ and have nothing from his nature cannot go to Heaven if others who doesn’t know him and have his nature will not go. I hope I was clear enough and I’m sure that you’ll answer me back.