Galatians 1:8

But even if we, or an angel from heaven, should preach to you a gospel contrary to what we have preached to you, he is to be accursed!

Romans 9:3

For I could wish that I myself were accursed, separated from Christ for the sake of my brethren, my kinsmen according to the flesh,

1 Corinthians 16:22

If anyone does not love the Lord, he is to be accursed. Maranatha.

2 Corinthians 11:13-14

For such men are false apostles, deceitful workers, disguising themselves as apostles of Christ.

Matthew 25:41

“Then He will also say to those on His left, ‘Depart from Me, accursed ones, into the eternal fire which has been prepared for the devil and his angels;

Galatians 1:9

As we have said before, so I say again now, if any man is preaching to you a gospel contrary to what you received, he is to be accursed!

Revelation 22:18-19

I testify to everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues which are written in this book;

Genesis 9:25

So he said,
Cursed be Canaan;
A servant of servants
He shall be to his brothers.”

Deuteronomy 27:15-26

‘Cursed is the man who makes an idol or a molten image, an abomination to the Lord, the work of the hands of the craftsman, and sets it up in secret.’ And all the people shall answer and say, ‘Amen.’

Joshua 9:23

Now therefore, you are cursed, and you shall never cease being slaves, both hewers of wood and drawers of water for the house of my God.”

1 Samuel 26:19

Now therefore, please let my lord the king listen to the words of his servant. If the Lord has stirred you up against me, let Him accept an offering; but if it is men, cursed are they before the Lord, for they have driven me out today so that I would have no attachment with the inheritance of the Lord, saying, ‘Go, serve other gods.’

Nehemiah 13:25

So I contended with them and cursed them and struck some of them and pulled out their hair, and made them swear by God, “You shall not give your daughters to their sons, nor take of their daughters for your sons or for yourselves.

Mark 14:71

But he began to curse and swear, “I do not know this man you are talking about!”

Acts 23:14

They came to the chief priests and the elders and said, “We have bound ourselves under a solemn oath to taste nothing until we have killed Paul.

1 Corinthians 12:3

Therefore I make known to you that no one speaking by the Spirit of God says, “Jesus is accursed”; and no one can say, “Jesus is Lord,” except by the Holy Spirit.

Galatians 3:10

For as many as are of the works of the Law are under a curse; for it is written, “Cursed is everyone who does not abide by all things written in the book of the law, to perform them.”

Galatians 3:13

Christ redeemed us from the curse of the Law, having become a curse for us—for it is written, “Cursed is everyone who hangs on a tree”—

1 Timothy 1:19-20

keeping faith and a good conscience, which some have rejected and suffered shipwreck in regard to their faith.

Titus 3:10

Reject a factious man after a first and second warning,

2 Peter 2:14

having eyes full of adultery that never cease from sin, enticing unstable souls, having a heart trained in greed, accursed children;

Treasury of Scripture Knowledge

Summary

But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.

Bible References

Though

Galatians 1:9
As we have said before, so I say again now, if any man is preaching to you a gospel contrary to what you received, he is to be accursed!
1 Corinthians 16:22
If anyone does not love the Lord, he is to be accursed. Maranatha.
2 Corinthians 11:13
For such men are false apostles, deceitful workers, disguising themselves as apostles of Christ.
1 Timothy 1:19
keeping faith and a good conscience, which some have rejected and suffered shipwreck in regard to their faith.
Titus 3:10
Reject a factious man after a first and second warning,
Revelation 22:18
I testify to everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues which are written in this book;

Let

Galatians 3:10
For as many as are of the works of the Law are under a curse; for it is written, “Cursed is everyone who does not abide by all things written in the book of the law, to perform them.”
Genesis 9:25
So he said,
Cursed be Canaan;
A servant of servants
He shall be to his brothers.”
Deuteronomy 27:15
‘Cursed is the man who makes an idol or a molten image, an abomination to the Lord, the work of the hands of the craftsman, and sets it up in secret.’ And all the people shall answer and say, ‘Amen.’
Joshua 9:23
Now therefore, you are cursed, and you shall never cease being slaves, both hewers of wood and drawers of water for the house of my God.”
1 Samuel 26:19
Now therefore, please let my lord the king listen to the words of his servant. If the Lord has stirred you up against me, let Him accept an offering; but if it is men, cursed are they before the Lord, for they have driven me out today so that I would have no attachment with the inheritance of the Lord, saying, ‘Go, serve other gods.’
Nehemiah 13:25
So I contended with them and cursed them and struck some of them and pulled out their hair, and made them swear by God, “You shall not give your daughters to their sons, nor take of their daughters for your sons or for yourselves.
Matthew 25:41
“Then He will also say to those on His left, ‘Depart from Me, accursed ones, into the eternal fire which has been prepared for the devil and his angels;
2 Peter 2:14
having eyes full of adultery that never cease from sin, enticing unstable souls, having a heart trained in greed, accursed children;

General references

Leviticus 15:8
Or if the man with the discharge spits on one who is clean, he too shall wash his clothes and bathe in water and be unclean until evening.
Jeremiah 16:20
Can man make gods for himself?
Yet they are not gods!
1 Corinthians 3:11
For no man can lay a foundation other than the one which is laid, which is Jesus Christ.