Speakeat against thine own brother
Psa 50.20
Privily slander thy neighbor, him will I cut off
Psa 101.5
Uttered a slanders is a fool
Pro 10.18
Grievous revolvers, walking with slanders; they are corrupters
Jer 6.28
He is proud knowing nothing, but doting about questions and strikes of words
1 Tim 6.4-5
Not evil for evil, or railing for railing
1 pet 3.8-9
Speak evil of no man
Tit 3.2