To say bad things about someone that harm their good name.
About Defame
The utterance of false charges or accusations that defame another person’s reputation; when directed toward God, such accusations are considered blasphemy. See Blasphemy.
All Scripture References (1)
1 Corinthians (1)
1 Corinthians 4:13
when we are slandered, we answer gently. Up to this moment we have become the scum of the earth, the refuse of the world.