Rashi, the famous 11th century French Biblical commentator, ... Almost 2,000 years later, people were still talking about the souls that Abraham and Sarah made in Ur, Haran, ...

Why does God call Abraham “my friend”? (Isaiah 41:8) Because Abraham introduced his friends to the imageless, formless One. His friends joined Sarah and Abraham in prayer each and every new moon.

Abraham’s Thought, Sarah’s Torah Rav Kook distinguished between the different approaches of these two spiritual giants. Abraham’s teachings correspond to the philosophical heritage of Judaism.