Pr 18:24
איש man
רעים evil water, shouting water, shepherding water
להתרעע - to ל cooperate הת with evil רעע
ויש is , be
אהב - love
דבק - cleave, testify of he cross
מאח - from brothers, from woe
Prov 18:24 The man who associates with others in the flesh is of double flesh, the one who loves is a brother. That's rough. The first idea is similar to the old saying "He who lies down with dogs gets up with fleas." But he who loves is a the 'real' brother.
More paraphrase than translation
The sense of the first is not that the dogs give him fleas, but he has abandoned the spirit to be friends with the flesh. His spirit is flesh, hence the double flesh. He associates with the flesh because he has chosen to be flesh.
The second is the teaching that 'by your love for one another' you are knowwn to be in the family of God.
A parallel to the first is , they departed from among you because they were not of you.
or there must be divisions among you so that those who are true can be known