The reason seems difficult, and yet I believe that the answer is very simple. GOD wants "Christians" to place their faith and trust in HIM and HIM alone through Jesus Christ and the leading of the Holy Spirit. It is very easy accept, & the Jews fell into the mistake of believing that their affiliation would save them, their heritage would save them, their priests and rituals would save them. Jesus' remarks to the rabbinical crowd and the story of the rich man and Lazarus most definately tell a different story. GOD looks on the Heart of each INDIVIDUAL through the blood of Jesus. GOD wants us to depend entirely on HIS leading and HIS teaching. GOD doesn't want people to feel safe because they attend the "Correct Church". This is a smack-down against Roman Catholicism and Mormonism that both proclaim to be the "correct church". This is fundamentally a teaching in error to what Christ proclaimed.