'So and so' in the Bible

He said, "Go into the city to so-and-so; tell him that the Teacher says, 'My time is near, I will celebrate the passover at your house with my disciples.' "

Look at this obvious fact. So-and-so is perfectly sure he 'belongs to Christ'? Well then, let him understand, on second thoughts, that I 'belong to Christ' as much as he does.