Rabbeinu b’Chayei writes, “When one has bitachon, it is like Hashem promised him.” 

When he has bitachon, he can feel confident that Hashem will help him. He can view it as though Hashem told him everything will be good. 

And as the Divrei Yisrael reveals to us, he can be even more confident, because emunah and bitachon are the strongest guarantees that everything will be good.

~ R’ Elimelech Biderman