Bless you! 1. This is what you are supposed to say to someone who has just sneezed.
2. You may hear people say informally 'God bless you!' or just 'Bless you!' when they want to express affection, thanks, or good wishes. Usually the idea is that one person (usually somebody who is young, strong, powerful or rich) has selflessly helped another (normally someone who is very old or weak, or absolutely helpless and penniless), and the latter - full of gratitude - believes that a mere 'thank you' is not enough.
God bless you for what you do!
Bless you for caring so much!