One man he called "an Israelite indeed, in whom there is no guile."
On another occasion, explaining some of the more esoteric ideas he held, he marveled that "you are an elder in Israel, and do NOT know these things...??"
Crystalk, you say, "who had lost their faith." Faith in what? Faith in whom? In the passages I have cited in post #218 (the specifics of which you have not addressed), Jesus and the Apostle John make it very clear that it is faith in Jesus Christ that is needed. If Jews truly believed the promises of God in the Old Testament, they would welcome the one whom God has sent. If they reject Christ, they do not have faith in or worship the God of Israel.
This is not to say that there are not Jews (descendants of Jacob) who have believed in Christ. All of the apostles and much of the first-century church were Jewish. But today the reality is pretty much the opposite of what you say: There are particular Jews who come to believe in Jesus, but as a whole the Jewish people have rejected Christ.
BTW, if you claim to be a Christian, and yet you see other ways of salvation outside of faith in Christ and you deny the doctrine of the Holy Trinity, you have placed yourself outside of the one orthodox faith and have made yourself a heretic.