Matthew 5:29

And therefore if thy right eye cause thee to offend, pluck it out and cast it from thee; for it is better for thee that one part of thee perish, than that thy whole body should be cast into hell:

Matthew 18:8-9

If then thy hand or thy foot cause thee to offend, cut them off and cast them from thee; it is better for thee to enter into life halt or maimed, than having two hands or two feet to be cast into everlasting fire:

Mark 9:43-48

And if thy hand cause thee to offend, cut it off: it is better for thee to enter into life maimed, than having two hands, to go into hell, into the fire that will never be extinguished;

Matthew 5:22

but I say unto you, that whosoever is angry with his brother without cause shall be liable to the judgment; and whosoever shall say to his brother, Raca, shall be obnoxious to the council; but whosoever shall say, "Thou fool," shall be in danger of hell-fire.

Matthew 10:28

And be not afraid of them, who can only kill the body, but are not able to kill the soul: but rather fear Him, who is able to destroy both soul and body in hell.

Matthew 16:26

For what is a man profited, if he gain the whole world, and lose his own soul? or what shall a man give as a ransom for his soul?

Matthew 19:12

for there are some eunuchs, who were born so from their mother's womb; and there be some, who were made eunuchs by men; and there are eunuchs, who have made themselves eunuchs for the sake of the kingdom of heaven. He that can receive this saying, let him receive it.

Matthew 23:15

Wo unto you scribes and pharisees, hypocrites: for ye compass sea and land to make a proselyte, and when he is gained, ye make him more the child of hell than yourselves.

Matthew 23:33

how can ye escape the damnation of hell?

Mark 8:36

For what shall it profit a man, if he gain the whole world, and lose his own soul?

Luke 9:24-25

for he that would save his life shall lose it, but he that would lose his life for my sake shall save it.

Luke 12:5

But I will shew you whom ye should fear,---Fear Him, who after He hath killed, hath power to cast into hell; yea, I say unto you, fear Him.

Romans 6:6

Knowing this, that our old man is crucified with Him, that the body of sin might be destroyed, that we might no longer be inslaved to sin:

Romans 8:13

for if ye live after the flesh, ye shall die; but if by the Spirit ye mortify the deeds of the body, ye shall live.

1 Corinthians 9:27

but I mortify my body and bring it into subjection, least after having preached to others, I myself should be rejected.

Galatians 5:24

And they, that are Christ's, have crucified the flesh with it's passions and desires.

Colossians 3:5

Mortify therefore your members that are upon the earth; fornication, uncleanness, disorderly passion, evil concupiscence, and insatiable desire, which is indeed idolatry:

1 Peter 4:1-3

Seeing therefore Christ hath suffered for us in the flesh, arm yourselves likewise with the same thought, that he, who hath mortified the flesh, hath ceased from sin;

Treasury of Scripture Knowledge

Summary

And if thy right eye offend thee, pluck it out, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell.

Bible References

If

Matthew 18:8
If then thy hand or thy foot cause thee to offend, cut them off and cast them from thee; it is better for thee to enter into life halt or maimed, than having two hands or two feet to be cast into everlasting fire:
Mark 9:43
And if thy hand cause thee to offend, cut it off: it is better for thee to enter into life maimed, than having two hands, to go into hell, into the fire that will never be extinguished;

Pluck

Matthew 19:12
for there are some eunuchs, who were born so from their mother's womb; and there be some, who were made eunuchs by men; and there are eunuchs, who have made themselves eunuchs for the sake of the kingdom of heaven. He that can receive this saying, let him receive it.
Romans 6:6
Knowing this, that our old man is crucified with Him, that the body of sin might be destroyed, that we might no longer be inslaved to sin:
Romans 8:13
for if ye live after the flesh, ye shall die; but if by the Spirit ye mortify the deeds of the body, ye shall live.
1 Corinthians 9:27
but I mortify my body and bring it into subjection, least after having preached to others, I myself should be rejected.
Galatians 5:24
And they, that are Christ's, have crucified the flesh with it's passions and desires.
Colossians 3:5
Mortify therefore your members that are upon the earth; fornication, uncleanness, disorderly passion, evil concupiscence, and insatiable desire, which is indeed idolatry:
1 Peter 4:1
Seeing therefore Christ hath suffered for us in the flesh, arm yourselves likewise with the same thought, that he, who hath mortified the flesh, hath ceased from sin;

For

Matthew 16:26
For what is a man profited, if he gain the whole world, and lose his own soul? or what shall a man give as a ransom for his soul?
Mark 8:36
For what shall it profit a man, if he gain the whole world, and lose his own soul?
Luke 9:24
for he that would save his life shall lose it, but he that would lose his life for my sake shall save it.