Slandering

Brothers and sisters, do not slander one another. Anyone who speaks against a brother or sister or judges them speaks against the law and judges it. When you judge the law, you are not keeping it, but sitting in judgment on it. There is only one Lawgiver and Judge, the one who is able to save and destroy. But you—who are you to judge your neighbor? James 4:11-12

"Do not spread slanderous gossip among your people. "Do not stand idly by when your neighbor's life is threatened. I am the LORD.
Lev 19:16

Whoever secretly slanders his neighbor, him I will destroy; No one who has a haughty look and an arrogant heart will I endure.
Psalm 101:5

Hiding hatred makes you a liar; slandering others makes you a fool.
Prov 10:18

He went on: “What comes out of a person is what defiles them. For it is from within, out of a person’s heart, that evil thoughts come—sexual immorality, theft, murder, adultery, greed, malice, deceit, lewdness, envy, slander, arrogance and folly. All these evils come from inside and defile a person.” Mark 7:20-23

1Remind the people to be subject to rulers and authorities, to be obedient, to be ready to do whatever is good, 2to slander no one, to be peaceable and considerate, and always to be gentle toward everyone.
3At one time we too were foolish, disobedient, deceived and enslaved by all kinds of passions and pleasures. We lived in malice and envy, being hated and hating one another. 4But when the kindness and love of God our Savior appeared, 5he saved us, not because of righteous things we had done, but because of his mercy. He saved us through the washing of rebirth and renewal by the Holy Spirit, 6whom he poured out on us generously through Jesus Christ our Savior, 7so that, having been justified by his grace, we might become heirs having the hope of eternal life. 8This is a trustworthy saying. And I want you to stress these things, so that those who have trusted in God may be careful to devote themselves to doing what is good. These things are excellent and profitable for everyone.
Titus 3:1-8

Psalm 15
Lord, who may dwell in your sacred tent?
Who may live on your holy mountain?
2The one whose walk is blameless,
who does what is righteous,
who speaks the truth from their heart;
3whose tongue utters no slander,
who does no wrong to a neighbor,
and casts no slur on others;
4who despises a vile person
but honors those who fear the Lord;
who keeps an oath even when it hurts,
and does not change their mind;
5who lends money to the poor without interest;
who does not accept a bribe against the innocent.
Whoever does these things
will never be shaken.

Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice.
Eph 4:31
Therefore, rid yourselves of all malice and all deceit, hypocrisy, envy, and slander of every kind.
1 Peter 2:1

And so I tell you, every kind of sin and slander can be forgiven, but blasphemy against the Spirit will not be forgiven.
Matthew 12:31

If your brother or sister sins, go and point out their fault, just between the two of you. If they listen to you, you have won them over.
Matthew 18:15

Then Peter came to Jesus and asked, "Lord, how many times shall I forgive my brother or sister who sins against me? Up to seven times?" Jesus answered, "I tell you, not seven times, but seventy-seven times.
Matt 18:21-22