I have read of what Christ said
The Father is the one true God and greater than he, you believe I cannot be saved with that belief. Who's voice are you listening to to believe that?
Where did I say that you cannot "be saved" with that belief? Yes, the Father is greater than the Son. But, it was the Word who emptied Himself and became the Son. If you would, search Angel + Lord, Angel + God, and see if the Word is not God Himself, our very Creator, the same One who made the Old Testament Covenant, the Same one speaks for the Godhead.
But this is what I said:
are we to believe that the LORD is our Savior? ---yes
Is there any other savior besides the LORD? ----no
Is Jesus Christ our Savior? -----yes
Are we to believe Jesus Christ is God? ---- yes
If Jesus Christ is not God, the same One who said He is our Savior in the Old Testament, then we are saying that the LORD is not our Savior. If Jesus is not our Savior (the LORD is our Savior) then we do not believe the LORD as our Savior. There is no other means to the Father except through the Son who came to be our Savior from the Old Testament.
If you believe Jesus is your Savior, then He is the LORD who said He is our Savior.
So, yes! One must believe Jesus is that God who promised us to be our Deliverer (Psalms).
But, does one have to come to this knowledge before receiving salvation? To this I say: we grow in the knowledge of the Faith day by day and it is when we hearken to the Spirit of Truth that this Truth is found. But yet, one cannot remain in opposition to the revealed Truth.