Jude 1:15

to execute judgment upon all, and to convict all the ungodly of all their works of ungodliness, which in ungodliness they committed, and of all the hard things which, as ungodly sinners, they spake against Him."

Matthew 10:25

It is enough for the disciple, that he become as his teacher, and the servant as his lord. If they called the Master of the house Beelzebub, how much more those of his house-hold?

Matthew 12:24

But the Pharisees, hearing it, said, "This Man doth not cast out the demons, except by Beelzebub, prince of the demons."

John 8:44

Ye are of your father the Devil; and the desires of your father ye wish to do. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own; because he is a liar, and the father of it.

John 8:48

The Jews answered and said to Him, "Say we not well that Thou art a Samaritan, and hast a demon?"

Acts 25:7

And, when he presented himself, the Jews who came down from Jerusalem stood around him, bringing many and grievous charges, which they were not able to prove;

Revelation 21:8

But, for the fearful, and unbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, their part shall be in the lake that burns with fire and brimstone; which is the second death."

Revelation 22:15

Without are the dogs and the sorcerers, and the fornicators, and the murderers, and the idolaters, and every one loving and acting a lie.

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
Ye are of your father the Devil; and the desires of your father ye wish to do. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own; because he is a liar, and the father of it.
Revelation 21:8
But, for the fearful, and unbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all the liars, their part shall be in the lake that burns with fire and brimstone; which is the second death."
Revelation 22:15
Without are the dogs and the sorcerers, and the fornicators, and the murderers, and the idolaters, and every one loving and acting a lie.

Speak

Matthew 10:25
It is enough for the disciple, that he become as his teacher, and the servant as his lord. If they called the Master of the house Beelzebub, how much more those of his house-hold?
Matthew 12:24
But the Pharisees, hearing it, said, "This Man doth not cast out the demons, except by Beelzebub, prince of the demons."
John 8:48
The Jews answered and said to Him, "Say we not well that Thou art a Samaritan, and hast a demon?"
Acts 25:7
And, when he presented himself, the Jews who came down from Jerusalem stood around him, bringing many and grievous charges, which they were not able to prove;

Grievous things

Jude 1:15
to execute judgment upon all, and to convict all the ungodly of all their works of ungodliness, which in ungodliness they committed, and of all the hard things which, as ungodly sinners, they spake against Him."