Matthew 3:10

And already the axe is lying at the root of the trees; every tree, therefore, not bearing good fruit, is cut down, and cast into the fire.

Matthew 13:15

for the heart of this people was made gross, and with their ears they heard heavily, and their eyes they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and turn, and I should heal them.'

Matthew 13:19

When any one hears the word of the Kingdom, and understands it not, the evil one comes, and snatches away what has been sown in his heart: this is he that was sown by the wayside.

John 15:6

Unless one abides in Me, he was cast forth as a branch, and withered; and they gather them, and cast them into the fire, and they are burned.

Romans 1:28

And, as they did not approve the holding of God in their knowledge, God delivered them up to a reprobate mind, to do those things which are not becoming;

Romans 1:31

without understanding, covenant-breakers, without natural affection, unmerciful;

1 Thessalonians 2:16

forbidding us to speak to the gentiles, that they might be saved, for the filling up of their sins always; and the wrath came upon them to the uttermost.

2 Thessalonians 1:8-9

awarding vengeance to those who know not God, and to those who obey not the Gospel of our Lord Jesus;

James 2:13

For the judgment is without mercy to him who showed no mercy: mercy exults 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
And already the axe is lying at the root of the trees; every tree, therefore, not bearing good fruit, is cut down, and cast into the fire.
John 15:6
Unless one abides in Me, he was cast forth as a branch, and withered; and they gather them, and cast them into the fire, and they are burned.

For it is

Matthew 13:15
for the heart of this people was made gross, and with their ears they heard heavily, and their eyes they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and turn, and I should heal them.'
Romans 1:28
And, as they did not approve the holding of God in their knowledge, God delivered them up to a reprobate mind, to do those things which are not becoming;