Matthew 12:31-32
Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven. / Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the one to come.

Luke 12:10
And everyone who speaks a word against the Son of Man will be forgiven, but whoever blasphemes against the Holy Spirit will not be forgiven.

Hebrews 10:29
How much more severely do you think one deserves to be punished who has trampled on the Son of God, profaned the blood of the covenant that sanctified him, and insulted the Spirit of grace?

1 John 5:16
If anyone sees his brother committing a sin not leading to death, he should ask God, who will give life to those who commit this kind of sin. There is a sin that leads to death; I am not saying he should ask regarding that sin.

Matthew 9:34
But the Pharisees said, “It is by the prince of demons that He drives out demons.”

John 7:20
“You have a demon,” the crowd replied. “Who is trying to kill You?”

John 8:48-52
The Jews answered Him, “Are we not right to say that You are a Samaritan and You have a demon?” / “I do not have a demon,” Jesus replied, “but I honor My Father, and you dishonor Me. / I do not seek My own glory. There is One who seeks it, and He is the Judge. ...

Acts 7:51
You stiff-necked people with uncircumcised hearts and ears! You always resist the Holy Spirit, just as your fathers did.

Isaiah 5:20
Woe to those who call evil good and good evil, who turn darkness to light and light to darkness, who replace bitter with sweet and sweet with bitter.

Isaiah 63:10
But they rebelled and grieved His Holy Spirit. So He turned and became their enemy, and He Himself fought against them.

Jeremiah 7:25-26
From the day your fathers came out of the land of Egypt until this day, I have sent you all My servants the prophets again and again. / Yet they would not listen to Me or incline their ear, but they stiffened their necks and did more evil than their fathers.

Ezekiel 20:27-28
Therefore, son of man, speak to the house of Israel, and tell them that this is what the Lord GOD says: In this way also your fathers blasphemed Me by their unfaithfulness against Me. / When I brought them into the land that I swore to give them and they saw any high hill or leafy tree, there they offered their sacrifices, presented offerings that provoked Me, sent up their fragrant incense, and poured out their drink offerings.

2 Kings 17:14-15
But they would not listen, and they stiffened their necks like their fathers, who did not believe the LORD their God. / They rejected His statutes and the covenant He had made with their fathers, as well as the decrees He had given them. They pursued worthless idols and became worthless themselves, going after the surrounding nations that the LORD had commanded them not to imitate.

Nehemiah 9:26
But they were disobedient and rebelled against You; they flung Your law behind their backs. They killed Your prophets, who had admonished them to return to You. They committed terrible blasphemies.

Psalm 78:40-41
How often they disobeyed Him in the wilderness and grieved Him in the desert! / Again and again they tested God and provoked the Holy One of Israel.