Jude 1:15

to bring judgment upon all [such people], and to convict every person of their ungodly behavior, which they have wickedly committed, and of all the evil things that [such] ungodly sinners have spoken against God."

Matthew 10:25

A disciple is doing well if he can be [as good] as his teacher, and the slave [as good] as his master. If they have called the master of the house [i.e., Jesus] Beelzebub [i.e., the chief of evil spirits. See Mark 3:22], how much more [likely] will they call members of his household [i.e., the disciples] the same thing!

Matthew 12:24

But when the Pharisees heard this, they said, "This man does not drive out evil spirits except by [the power of] Beelzebub, the chief of evil spirits."

John 8:44

You belong to your father the devil, and you are [always] wanting to do what your father desires. He was a murderer from the [very] beginning [Note: This is probably a reference to Satan's influence on Adam, Eve and Cain in the Garden of Eden] and does not stand for the truth, because there is no truth in him. When he lies, he only speaks what is part of his nature, because he is a liar and the father of [all] liars.

John 8:48

The Jews answered and said to Jesus, "Were we not right in saying that you are a Samaritan [See note on 4:9], and are dominated by an evil spirit?"

Acts 25:7

When Paul appeared, the [Jewish] leaders who had accompanied Festus down from Jerusalem gathered around him and brought many serious charges against him, which they were not able to prove.

Revelation 21:8

But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."

Revelation 22:15

On the outside [of the city] are the dogs [Note: This probably refers to people who practiced sexual perversions. See Deut. 23:17] and the sorcerers, and the sexually immoral people, and the murderers, and the idolaters and every person who loves and practices falsehood.

Treasury of Scripture Knowledge

Summary

Let the lying lips be put to silence; which speak grievous things proudly and contemptuously against the righteous.

Grievous things

Bible References

The lying

John 8:44
You belong to your father the devil, and you are [always] wanting to do what your father desires. He was a murderer from the [very] beginning [Note: This is probably a reference to Satan's influence on Adam, Eve and Cain in the Garden of Eden] and does not stand for the truth, because there is no truth in him. When he lies, he only speaks what is part of his nature, because he is a liar and the father of [all] liars.
Revelation 21:8
But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."
Revelation 22:15
On the outside [of the city] are the dogs [Note: This probably refers to people who practiced sexual perversions. See Deut. 23:17] and the sorcerers, and the sexually immoral people, and the murderers, and the idolaters and every person who loves and practices falsehood.

Speak

Matthew 10:25
A disciple is doing well if he can be [as good] as his teacher, and the slave [as good] as his master. If they have called the master of the house [i.e., Jesus] Beelzebub [i.e., the chief of evil spirits. See Mark 3:22], how much more [likely] will they call members of his household [i.e., the disciples] the same thing!
Matthew 12:24
But when the Pharisees heard this, they said, "This man does not drive out evil spirits except by [the power of] Beelzebub, the chief of evil spirits."
John 8:48
The Jews answered and said to Jesus, "Were we not right in saying that you are a Samaritan [See note on 4:9], and are dominated by an evil spirit?"
Acts 25:7
When Paul appeared, the [Jewish] leaders who had accompanied Festus down from Jerusalem gathered around him and brought many serious charges against him, which they were not able to prove.

Grievous things

Jude 1:15
to bring judgment upon all [such people], and to convict every person of their ungodly behavior, which they have wickedly committed, and of all the evil things that [such] ungodly sinners have spoken against God."