The phrase "doeth washing" can be replaced with a variety of synonyms depending on context. In regards to household chores, "laundry" is a common replacement. Other options include "washing clothes," "cleaning clothes," or simply "doing the laundry." If referring to car maintenance, "washing the car" or "detailing the car" could be used. In a spiritual context, "cleansing" or "purifying" may be appropriate replacements. When discussing workplace tasks, "cleaning" or "sanitizing" could be used instead. Ultimately, the choice of synonym depends on the intended meaning and the context in which it is being used.