How could they not know about Jesus as Savior when His very Hebrew name -- Yeshua -- means "God is our salvation"? It is one thing to say that they REFUSED to accept Him as their Savior, and another thing to say that they were unaware that He was their Savior.
As you go through the Gospels -- particularly the Gospel of John -- you find Christ presenting Himself as Savior to the Jews. Also, even before Christ began His public ministry, John the Baptizer presented Him as the Savior.
The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
And I knew him not: but he that sent me to baptize with water, the same said unto me, Upon whom thou shalt see the Spirit descending, and remaining on him, the same is he which baptizeth with the Holy Ghost.
And looking upon Jesus as he walked, he saith, Behold the Lamb of God!
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation; but is passed from death unto life.
Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
We could add many more sayings of Christ presenting Himself as Savior.