Matthew 12:31

I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.

Matthew 26:66

What is your view?" They replied, "He is doomed to death."

Mark 3:28-29

I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,

John 8:58-59

"Truly, truly I tell you," said Jesus, "I have existed before Abraham was born."

John 10:33-36

The Jews retorted, "We mean to stone you, not for a good deed, but for blasphemy, because you, a mere man, make yourself God."

Acts 26:11

there was not a synagogue where I did not often punish them and force them to blaspheme; and in my frantic fury I persecuted them even to foreign towns.

1 Timothy 1:13

though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;

James 2:7

Is it not they who scoff at the noble Name you bear?

Treasury of Scripture Knowledge

Summary

And he that blasphemeth the name of the LORD, he shall surely be put to death, and all the congregation shall certainly stone him: as well the stranger, as he that is born in the land, when he blasphemeth the name of the LORD, shall be put to death.

General references

Bible References

Blasphemeth

Matthew 12:31
I tell you therefore, men will be forgiven any sin and blasphemy, but they will not be forgiven for blaspheming the Spirit.
Mark 3:28
I tell you truly, the sons of men shall be forgiven all their sins, and all the blasphemies they may utter,
John 8:58
"Truly, truly I tell you," said Jesus, "I have existed before Abraham was born."
John 10:33
The Jews retorted, "We mean to stone you, not for a good deed, but for blasphemy, because you, a mere man, make yourself God."
Acts 26:11
there was not a synagogue where I did not often punish them and force them to blaspheme; and in my frantic fury I persecuted them even to foreign towns.
1 Timothy 1:13
though I had formerly been a blasphemer and a persecutor and a wanton aggressor. I obtained mercy because in my unbelief I had acted out of ignorance;
James 2:7
Is it not they who scoff at the noble Name you bear?

General references

Mark 14:64
You have heard his blasphemy for yourselves. What is your mind?" They condemned him, all of them, to the doom of death;