Sabbath Controversies
“Even shedding of blood, which defiles the land and causes the Shekinah to remove, is to supersede the laws of the Sabbath if it is to be done in protection of one’s life. How much more should the duty of saving life supersede the Sabbath laws . . . . The Sabbath is given to you but you are not surrendered to the Sabbath.”
- Tractate Shabbata, Mekilta of Rabbi Ishmael