What is spiritual Israel? How is he related to the descendants of Abraham according to the flesh? Should Christians read and practice anything from the so-called Old Testament? We will try to consider these and other questions in the light of Holy Scripture, without regard to denominational discrepancies. To do this, we may have to make an effort of will to obey the word rather than the teachings. This in turn will require us to be sincere and honest, first of all, with ourselves. It's not easy, but it's worth it. After all, honesty with ourselves, and as a result with God, humility and obedience to His word makes us truly family with Him.