"guaranteed (sic) by Dovid HaMelech"
"How can you possibly ensure the safety of your family?"
Tzedakah is a great thing, but there is a real risk here that it can lead people to be negligent about their hishtadlus. I remember after the Versailles tragedy in Talpiot, hearing a rav lament how some people were claiming that it was due to lack of tzniyus, etc. He said, "It happened because people think that they can short-cut safety regulations! Venishmartem me'od lenafshosechem is also a mitzvah!"