CHRISTIAN SALVATION IS NOT AUTOMATIC BELIEF IN JESUS. That was only true for the Jews of the time of Jesus not for Gentiles who had to learn Christian Judaim

Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven. Matthew 7:21 KJV

Wherefore, my beloved, as ye have always obeyed, not as in my presence only, but now much more in my absence, work out your own salvation with fear and trembling. Philippians 2:12 KJV 

John 14:21 ASV
(21)  He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself unto him.

When we died in Eden, who is the Savior who attended to us and rescued us to reconcile us with God the Father as the Mediator: Jehovah or Jesus?

And yet God is my King from long ago, The One performing grand salvation in the midst of the earth. Psalms 74:12 NWT
For Jehovah is our judge; Jehovah is our lawgiver; Jehovah is our king; He will save us. Isaiah 33:22 KJ3

(16) "For God loved the world so much that he gave his only-begotten Son, in order that everyone exercising faith in him might not be destroyed but have everlasting life. (17) For God sent forth his Son into the world, not for him to judge the world, but for the world to be saved through him. John 3:16-17 NWT 

I-I am Jehovah, and besides me there is no savior." Isaiah 43:11 NWT