The First Route to enabling Jewish and Gentile believers to become the ‘one new man’ of Ephesians 2.15 must be that the authority of Tradition is accepted ONLY on the basis that it agrees with, and is consistent with, the authority of the Bible.
Is this a likely possibility? Probably not.
Why? Because the leadership of ALL Christian denominations and ALL the separate groups in Judaism depend and rely on their Traditions to bolster and support their authority.
Remember the quotation from the Council of Trent:
It is clear, therefore, that Sacred Tradition, Sacred Scripture and the teaching authority of the Church, in accord with God's most wise design, are so linked and joined together that one cannot stand without the others…..
And the comment of Maimonides that:
God did not permit us to learn from the Prophets, but only from the Rabbis who are men of logic and reason.
The Second Route is, therefore, presented with some difficulty! This route depends for its success on the leaders of Christianity and Judaism accepting The First Route, and agreeing together the implications of The First Route…..so that the whole building, being joined together, grows into a Holy Temple in the LORD.
Since this is so unlikely, it seems that we must wait for Jesus to return and effect the change Himself.
When He arrived the first time, His teaching resulted in such a response from the people that ‘myriads believed’. In fact, there were so many believers in 62 AD that the pressure for change in the Rabbinic leadership was overwhelming. So much so that the leaders asked the LORD’s brother, James, who was the leader of the believers, to renounce Jesus as Messiah. When he refused to do so, he was murdered:
They came, therefore, in a body to James, and said:
"We entreat thee, restrain the people: for they are gone astray in their opinions about Jesus, as if he were the Christ. We entreat thee to persuade all who have come hither for the day of the Passover, concerning Jesus. For we all listen to thy persuasion; since we, as well as all the people, bear thee testimony that thou art just, and showest partiality to none. Do thou, therefore, persuade the people not to entertain erroneous opinions concerning Jesus: for all the people, and we also, listen to thy persuasion. Take thy stand, then, upon the summit of the Temple, that from that elevated spot thou mayest be clearly seen, and thy words may be plainly audible to all the people. For, in order to attend the Passover, all the Tribes have congregated hither, and some of the Gentiles also."
To the Scribes' and Pharisees' dismay, James boldly testified that Christ "Himself sitteth in heaven, at the right hand of the Great Power, and shall come on the clouds of heaven."
The Scribes and Pharisees then said to themselves, "We have not done well in procuring this testimony to Jesus. But let us go up and throw him down, that they may be afraid, and not believe him."
Fragments from the Acts of the Church; Concerning the Martyrdom of James, the Brother of the Lord, from Book 5.
The prospect of any current leader in Christianity or Rabbinic Judaism taking the same course of action as James seems most unlikely!!
In conclusion….we must wait for His return, The Second Coming, before the whole building, being joined together, grows into a Holy Temple in the LORD.
In the meantime, small pockets and groups of believers are beginning to experience to joy and fulfilment of becoming ‘one new man’…