Read Matthew 23:26 Using Other Translations
Thou blind Pharisee, cleanse first that which is within the cup and platter, that the outside of them may be clean also.
You blind Pharisee! First clean the inside of the cup and the plate, that the outside also may be clean.
You blind Pharisee! First wash the inside of the cup and the dish, and then the outside will become clean, too.