We cannot ultimately depend on the traditions of Catholicism, the teachings of the Mishnah and Talmud, or even the beliefs of the Reformers themselves to come to truth. We can consider what has been said and done before by wise men, but we must base what we believe and what we do on the Bible alone. We have seen the Messianic Movement tossed about by every wind of doctrine circulating today. We have seen men claiming to be God's prophets, even after their prophecies fail. There have been leaders vested with authority beyond Scripture.
Some Messianic groups give credence to Rabbinic tradition.
In Jewish ministry today, there is a serious need to return to the Scriptures alone as the sole authority for faith and practice. God's people are suffering for lack of sound teaching of the word of God. For in him all the fulness of God was pleased to dwell, and through him to reconcile to himself all things, whether on earth or in heaven, making peace by the blood of his cross. Today we hear in some circles the speculation that Jewish people can be saved through the Abrahamic Covenant and without explicit faith in Yeshua, Jesus, as Lord and Savior. This generally is not found in Jewish ministry circles, but there have been some offshoots that have begun to stress Torah more than Messiah.