They themselves don't even like the term "Jew's for Jesus". They call themselves Believers. They believe the Bible. They believe the prophets. They are Jewish in heritage, and believe Jesus was the one foretold in the prophesies. If I am saved, I also believe as they do and have been grafted in, "adopted" as it were. I believe the Old Testament was an accurate accounting and prophesy of the Mesiah coming. I also believe the New Testament when Jesus claims that title. If I am a child of the King, then I am Jewish also. I just believe what God has said. If I believed Ishmael was the legitimate heir to Abraham, then the Mesiah foretold would have to be Muslim. These Jew's just believe the Bible. The term "Christian" was coined many years later as the Romans were looking to label Believers. It was to mock them. The Bible even tells us that we have no rightiousness ourselves, but rightiousness is imputed to us by our belief. Not believeing God's word is what got Adam and Eve in trouble in the first place. Abraham was rightious in God's eyes because he believed God. Noah found grace with God because he believed Him. When God said "This is my Son, in whom I am well pleased", Who am I to doubt Him. Jesus said" If you've seen me you've seen the Father, I and the Father are one", Those are pretty big statements to say they are lies. You make your own choice, but if the "Jews for Jesus" choose to believe, they aren't less Jewish. They choose to believe God.
They choose to believe God. So do I. I talk to God all the time, as is my right. I need no intercessor, I need worship no man, nor symbolically drink his blood nor symbolically eat his flesh.
I used to, but it never worked. Only after I approached God directly were my prayers answered. I believe God, but I do not believe Jesus, or more precisely, all the things attributed to him (I personally think he was actually a very great Essene scholar and teacher, but that's my point of view).
Does that mean I will burn in hell forever? You are free to think so, and free to be wrong. I asked God, He answered. No hell for me, sorry. All men are free to create and reside in the hell of their choice, however, so there is hope for the "fire and brimstone" crowd.
God made a covenant with my people. Despite the incredible tendency of my people to sin and turn away from God again and again, he has always welcomed us back, and has never broken a promise. God loves me, loves my people, and loves all people. This is a fact.
You are free to approach God in any way you like. I am not one to tell you how to do that. But to command ME how to approach God is wrong, and if you were to condemn me because I choose to stand before God as a Jew, it would be evil.
Believe what you want; free will is God's greatest gift to man, and one He will never take from us. So don't try to do what even God would not.
Choose to believe God, and do what is right.