From here it follows that a doubt (i.e., a possibility) of saving a life overrides the Sabbath. For if (the sin of) killing, (in this instance, the thief,) (— killing,) which defiles the land and causes the Shechinah to depart (from Israel) — is overridden by the possibility (of saving one's life, how much more so does it follow that the possibility of saving life overrides the Sabbath.)