Matthew 3:10

Even now the ax is laid at the root of the trees, and every tree therefore that does not bear good fruit is cut down and thrown into the fire.

Matthew 13:15

For this people's heart has grown dull. And their ears are hard of hearing, and their eyes they have closed, lest they should see with their eyes, and hear with their ears, and they understand with their hearts, and turn so that I should heal them.'

Matthew 13:19

when anyone hears the word of the kingdom and does not understand it, the evil one comes and snatches away what was sown in his heart. This is the seed sown along the path.

John 15:6

If anyone does not abide in me, he is like a branch that is cast away and withers; and the branches are gathered, thrown into the fire and burned.

Romans 1:28

And since they did not see fit to retain the knowledge of God, God gave them over to a base mind, to do what ought not to be done.

Romans 1:31

foolish, faithless, heartless, ruthless.

1 Thessalonians 2:16

hindering us from speaking to the Gentiles so that they may be saved; with the result that they always fill up the measure of their sins. But wrath has come upon them at last.

2 Thessalonians 1:8-9

inflicting vengeance on those who do not know God and on those who do not obey the gospel of our Lord Jesus.

James 2:13

For judgment will be without mercy to one who has shown no mercy; mercy triumphs over judgment.

Treasury of Scripture Knowledge

Summary

When the boughs thereof are withered, they shall be broken off: the women come, and set them on fire: for it is a people of no understanding: therefore he that made them will not have mercy on them, and he that formed them will shew them no favour.

The boughs

Bible References

The boughs

Matthew 3:10
Even now the ax is laid at the root of the trees, and every tree therefore that does not bear good fruit is cut down and thrown into the fire.
John 15:6
If anyone does not abide in me, he is like a branch that is cast away and withers; and the branches are gathered, thrown into the fire and burned.

For it is

Matthew 13:15
For this people's heart has grown dull. And their ears are hard of hearing, and their eyes they have closed, lest they should see with their eyes, and hear with their ears, and they understand with their hearts, and turn so that I should heal them.'
Romans 1:28
And since they did not see fit to retain the knowledge of God, God gave them over to a base mind, to do what ought not to be done.