Hebrews 6:8

but if it produces thorns and thistles, it is considered worthless, and is in danger of being cursed, and its end will be to be burned.

Luke 13:7-9

So he said to the gardener. "'See, for years I have come looking for fruit on this tree, and found none. Cut it down. Why should it actually cumber the ground?'

John 15:6

"If any one does not abide in me he is thrown away like a branch and withers. Such branches are gathered up and thrown into the fire and burned.

Matthew 3:10

And already the axe is lying at the roots of the trees. Any tree, therefore, that does not bear good fruit is cut down and cast into the fire.

Matthew 7:19

"Every tree which does not bear good fruit is cut down and cast into the fire.

Matthew 25:41

"Then he will say to those also at his left hand. 'Depart from me, accursed ones, into the eternal fire prepared for the devil and his angels;

Mark 11:14

So, addressing the tree, he said, "Let no man ever more eat fruit from you." And the disciples heard it.

Mark 11:21

Then Peter remembered, and exclaimed, "Look, Rabbi, the fig tree which you cursed is withered up."

Hebrews 10:27

but a certain fearful expectation of judgment, and a fiery indignation which is about to devour the adversaries.

Hebrews 12:17

For you know that even when he afterward desired to inherit the blessing, he was rejected; he found no room for repentance, though he sought it earnestly, with tears.

Revelation 20:15

And if any one was found who was not written in the Book of Life, he was hurled into the lake of fire.

Treasury of Scripture Knowledge

Summary

But that which beareth thorns and briers is rejected, and is nigh unto cursing; whose end is to be burned.

Bible References

Beareth

Hebrews 12:17
For you know that even when he afterward desired to inherit the blessing, he was rejected; he found no room for repentance, though he sought it earnestly, with tears.
Mark 11:14
So, addressing the tree, he said, "Let no man ever more eat fruit from you." And the disciples heard it.
Luke 13:7
So he said to the gardener. "'See, for years I have come looking for fruit on this tree, and found none. Cut it down. Why should it actually cumber the ground?'

Whose

Hebrews 10:27
but a certain fearful expectation of judgment, and a fiery indignation which is about to devour the adversaries.
Matthew 3:10
And already the axe is lying at the roots of the trees. Any tree, therefore, that does not bear good fruit is cut down and cast into the fire.
Matthew 7:19
"Every tree which does not bear good fruit is cut down and cast into the fire.
Matthew 25:41
"Then he will say to those also at his left hand. 'Depart from me, accursed ones, into the eternal fire prepared for the devil and his angels;
John 15:6
"If any one does not abide in me he is thrown away like a branch and withers. Such branches are gathered up and thrown into the fire and burned.
Revelation 20:15
And if any one was found who was not written in the Book of Life, he was hurled into the lake of fire.

General references

Mark 3:28
In solemn truth I tell you that the sons of men shall be forgiven all their sins and all the blasphemies they may utter,
Luke 12:10
"If any one shall speak a word against the Son of man it shall be forgiven him; but he who is blasphemes against the Holy Spirit shall not be forgiven.
Luke 14:30
"'This fellow began to build and could not finish.'
Luke 23:31
"For if this is what they do in the green tree, what will they do in the dry?"
Jude 1:22
Pity some who are wavering, and save by dragging them out of the fire;