It would be absurd FOR US TO JUDAIZE... but NOT for the first christians.. Read Galatians.. even after many years it was not absurd..
Even now many christians don't follow the concepts of what is specified in the New Testament so well.. And thats with all mannar of seminaries to decrypt(or spin) both convenants..
The Talmud would confuse a mastermind..
The Apostles (except for Paul) were mostly UNeducated teenagers.. I laugh at people of our age totally ignorant of the conditions of New testament bible times.. Yet judge those folks by standards like they went to High School in the United States and went to Sunday school..
Most of the Apostles were clueless about most of Jesus' metaphors(parables).. In my experience MOST pastors are just as clueless.. Example: the parable of the talents.. is not about talent.. And the Tree of the Knowledge of Good and Evil is not a real tree but a metaphor.. As was the Snake and the Tree of Life..