Yaakov was armed

It is written in Sefer Tanah D'Bei Eliyaho, that when our forefather Yakov was alone, and the angel of Eisav came intending to kill him, that the angel was unable to succeed because he lacked the strength to overcome Yaakov – and this was because Yakov was armed. And how was Yakov armed? He had Tefillin on his head and on his arm.

May Hashem help us, that we should always be armed, and our enemies always should fail.