Psalm 15:3

3 whose tongue utters no slander, who does no wrong to a neighbor, and casts no slur on others;

Read Psalm 15:3 Using Other Translations

He that backbiteth not with his tongue, nor doeth evil to his neighbour, nor taketh up a reproach against his neighbour.
who does not slander with his tongue and does no evil to his neighbor, nor takes up a reproach against his friend;
Those who refuse to gossip or harm their neighbors or speak evil of their friends.