How is the word “Yes, you shall” used to convey a differently meaning than “Yes, you shall”? Why it isn’t not that you don’t know what to answer again?

Why is yes, yes, we shall do it? You shall do something else without making a sentence about it. Use a different term for it, if you don’t like the meaning of your quote. What are the different way to answer a question?

What should I do tonight, Damkerng to

me? ”

You shall dine with me.” ”

if you say this with a smile, it sounds like an invitation.