Leviticus 13:54

Then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more:

then the priest shall command that they wash the thing in which the plague is, and he shall isolate it seven more days.

then the priest shall command that they wash the thing wherein the plague is, and he shall shut it up seven days more:

then hath the priest commanded, and they have washed that in which the plague `is', and he hath shut it up a second seven days.

the priest is to order the contaminated article to be washed and isolated for another seven days.