The ax is already at the root of the trees, and every tree that does
not produce good fruit will be cut down and thrown into the fire (Matt 3:10).
And if your right hand causes you to sin, cut it off and throw it away.
It is better for you to lose one part of your body than for your whole
body to go into hell (Matt 5:30)
For if you forgive men when they sin against you, your heavenly Father will also forgive you. But if you do not forgive men their sins, your Father will not forgive your sins (Matt 6:14-15).
Then I will tell them plainly, 'I never knew you. Away from me, you evildoers!' (Matt 7:23)
And so I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven. Anyone
who speaks a word against the Son of Man will be forgiven, but anyone
who speaks against the Holy Spirit will not be forgiven, either in this
age or in the age to come (Matt 12:31-32).
They will throw them into the fiery furnace, where there will be weeping and gnashing of teeth (Matt 13:42).
If your hand or your foot causes you to sin, cut it off and throw it
away. It is better for you to enter life maimed or crippled than to
have two hands or two feet and be thrown into eternal fire. And
if your eye causes you to sin, gouge it out and throw it away. It is
better for you to enter life with one eye than to have two eyes and be
thrown into the fire of hell (Matt 18:8-9).
"Then the king told the attendants, 'Tie him hand and foot, and throw
him outside, into the darkness, where there will be weeping and
gnashing of teeth.' (Matt 22:13)
But suppose that servant is wicked and says to himself, 'My master is staying away a long time,' and he then begins to beat his fellow servants and to eat and drink with drunkards. The master of that servant will come on a day when he does not expect him and at an hour he is not aware of. He will cut him to pieces and assign him a place with the hypocrites, where there will be weeping and gnashing of teeth (Matt 24:48-51).