Leviticus 19:16

19:16 You must not go about as a slanderer among your people. You must not stand idly by when your neighbor’s life is at stake. I am the Lord.

Proverbs 10:18

10:18 The one who conceals hatred utters lies,

and the one who spreads slander is certainly a fool.

Proverbs 10:1

The First Collection of Solomonic Proverbs

10:1 The Proverbs of Solomon:

A wise child makes a father rejoice,

but a foolish child is a grief to his mother.

Titus 3:11

3:11 You know that such a person is twisted by sin and is conscious of it himself.

Titus 2:3

2:3 Older women likewise are to exhibit behavior fitting for those who are holy, not slandering, not slaves to excessive drinking, but teaching what is good.

Revelation 12:10

12:10 Then I heard a loud voice in heaven saying,

“The salvation and the power

and the kingdom of our God,

and the ruling authority of his Christ, have now come,

because the accuser of our brothers and sisters,

the one who accuses them day and night before our God,

has been thrown down.