Where does this phrase come from, is it from the Bible?
How clean are we meant to be, and how can we stay clean. Does the Bible have any tips. Are we meant to wash everyday? What do we do with our waste?
Is being clean the same as being holy?
It does not come from the Bible..
Physical cleanliness is not the same thing as being Holy..
The Bible says we are washed by the Blood of Jesus..
Revelation 1: KJV
4 "John to the seven churches which are in Asia: Grace be unto you, and peace, from him which is, and which was, and which is to come; and from the seven Spirits which are before his throne; {5} And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth.
Unto him that loved us,
and washed us from our sins in his own blood,"
Having said all that, we should persue physical cleanliness for it's practical health and social benifits..
But it plays no part in our eternal salvation..