An IDF soldier was praying in Gaza, wearing tefillin (phylacteries). When warned about a nearby Hamas terrorist, he removed his tefillin, but had no time to remove the metal night vision support plate on his helmet.  The terrorist shot 3 bullets at his head, which were absorbed by the plate.

https://worldisraelnews.com/watch-idf-soldiers-miraculous-story-shows-the-power-of-tefillin/