You judge according to the flesh; I judge no one.
15. You judge according to the flesh. This may be explained in two ways; either that they judge according to the wicked views of the flesh, or that they judge according to the appearance of the person. For the flesh sometimes denotes the outward appearance of a man; and both meanings agree well with this passage, since wherever either the feelings of the flesh prevail...
The rest of the chapter is taken up with debates between Christ and contradicting sinners, who cavilled at the most gracious words that proceeded out of his mouth. It is not certain whether these disputes were the same day that the adulteress was discharged; it is probable they were, for the evangelist mentions no other day, and takes notice (Joh 8:2) how early Christ began that day's work.
Commenting on John 8:12-20
It is also written in your law,.... The law of Moses, which was given unto them, and they boasted of; the passage referred to is in Deu 19:15; see also Deu 17:6; where though what follows is not to be found in so many words, yet the sense is there expressed: that the testimony of two men is true: concerning which the Jewish writers say...