YOU SAID:
I shalt saveth the day
INTO JAPANESE
日を saveth ことなかれ
BACK INTO ENGLISH
Day saveth thou shalt not
INTO JAPANESE
日 saveth 汝いません。
BACK INTO ENGLISH
Saveth the day thou shalt not.
INTO JAPANESE
汝いない日を saveth します。
BACK INTO ENGLISH
Saveth the day thou shalt not.
Come on, you can do better than that.