Eating the remnants of food offered to Vishnu can deliver one from all kinds of sinful actions.
Faith means… unflinching trust in something sublime.
Bhagavad Gita 2.41,
The Supreme Lord is the only proprietor of everything in the universe and He is the original creator.
If one offers Me with love and devotion a leaf, a flower, fruit or water, I will accept it.
Bhagavad Gita 9.26