Exodus 23:6, 7
You shall not deny justice to the poor in their lawsuits. . . .

Leviticus 19:11, 16
You must not steal. You must not lie or deceive one another. . . .

Deuteronomy 19:15-21
A lone witness is not sufficient to establish any wrongdoing or sin against a man, regardless of what offense he may have committed. A matter must be established by the testimony of two or three witnesses. . . .

1 Samuel 22:8-19
Is that why all of you have conspired against me? Not one of you told me that my own son had made a covenant with Jesse's son. Not one of you has shown concern for me or revealed to me that my son has stirred up my own servant to lie in wait against me, as is the case today." . . .

1 Kings 21:10-13
But seat two scoundrels opposite him and have them testify, 'You have cursed both God and the king!' Then take him out and stone him to death." . . .

Psalm 15:3
who has no slander on his tongue, who does no harm to his neighbor, who casts no scorn on his friend,

Psalm 101:5-7
Whoever slanders his neighbor in secret, I will put to silence; the one with haughty eyes and a proud heart, I will not endure. . . .

Proverbs 10:18
The one who conceals hatred has lying lips, and whoever spreads slander is a fool.

Proverbs 11:13
A gossip reveals a secret, but a trustworthy person keeps a confidence.

Matthew 26:59, 60
The chief priests and the whole Sanhedrin were seeking false testimony against Jesus in order to put Him to death. . . .

Acts 6:13
They presented false witnesses who said, "This man never stops speaking against this holy place and against the Law.

Ephesians 4:31
Get rid of all bitterness, rage and anger, outcry and slander, along with every form of malice.

1 Timothy 1:10
for the sexually immoral, for homosexuals, for slave traders and liars and perjurers, and for anyone else who is averse to sound teaching

2 Timothy 3:3
unloving, unforgiving, slanderous, without self-control, brutal, without love of good,

James 4:11
Brothers, do not slander one another. Anyone who speaks against his brother or judges him speaks against the Law and judges it. And if you judge the Law, you are not a practitioner of the Law, but a judge of it.