Hebrews 6:6

and having fallen away, to renew [them] again to repentance, [because they] have crucified again for themselves the Son of God and held him up to contempt.

Hebrews 10:29

How much worse punishment do you think the person will be considered worthy of who treats with disdain the Son of God and who considers ordinary the blood of the covenant by which he was made holy and who insults the Spirit of grace?

Hebrews 6:4

For [it is] impossible [concerning] those who have once been enlightened, and have tasted the heavenly gift, and become sharers of the Holy Spirit,

2 Peter 2:21

For it would have been better for them not to have known the way of righteousness than having known [it], to turn back from the holy commandment that had been delivered to them.

1 John 5:16

If anyone should see his brother sinning a sin not [leading] to death, he should ask, and he will grant life to him, to those who sin not [leading] to death. ([There] is a sin [leading] to death; I do not say that he should ask about that.

Psalm 51:10

Create a clean heart for me, O God, and renew a steadfast spirit {within me}.

Isaiah 1:28

But [the] destruction [of] rebels and sinners [shall be] together, and those who forsake Yahweh will perish.

Zechariah 12:10-14

" 'I will pour on the house of David and on the inhabitants of Jerusalem a spirit of grace and supplication, and they will look to me whom they pierced, and they shall mourn over him, as one wails over an only child, and they will grieve bitterly over him as [one] grieves bitterly over a firstborn.

Matthew 19:26

But Jesus looked at [them] [and] said to them, "With human beings this is impossible, but with God all [things] [are] possible."

Matthew 23:31-32

Thus you testify against yourselves that you are descendants of those who murdered the prophets!

Matthew 27:38-44

Then two robbers were crucified with him, one on [his] right and one on [his] left.

Mark 15:29-32

And those who passed by reviled him, shaking their heads and saying, "Aha! The one who would destroy the temple and rebuild [it] in three days,

Luke 11:48

As a result you are witnesses, and you approve of the deeds of your fathers, because they killed them and you build [their tombs]!

Luke 23:35-39

And the people stood there watching, but the rulers also ridiculed [him], saying, "He saved others; let him save himself, if this [man] is the Christ of God, the Chosen One!"

2 Timothy 2:25

correcting those who are opposed with gentleness, [seeing] whether perhaps God may grant them repentance to a knowledge of the truth,

Hebrews 12:2

fixing our eyes on Jesus, the originator and perfecter of faith, who for the joy that was set before him endured the cross, disregarding the shame, and has sat down at the right hand of the throne of God.

Treasury of Scripture Knowledge

Summary

If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame.

Bible References

To renew

Hebrews 6:4
For [it is] impossible [concerning] those who have once been enlightened, and have tasted the heavenly gift, and become sharers of the Holy Spirit,
Psalm 51:10
Create a clean heart for me, O God, and renew a steadfast spirit {within me}.
Isaiah 1:28
But [the] destruction [of] rebels and sinners [shall be] together, and those who forsake Yahweh will perish.
2 Timothy 2:25
correcting those who are opposed with gentleness, [seeing] whether perhaps God may grant them repentance to a knowledge of the truth,

They crucify

Hebrews 10:29
How much worse punishment do you think the person will be considered worthy of who treats with disdain the Son of God and who considers ordinary the blood of the covenant by which he was made holy and who insults the Spirit of grace?
Zechariah 12:10
" 'I will pour on the house of David and on the inhabitants of Jerusalem a spirit of grace and supplication, and they will look to me whom they pierced, and they shall mourn over him, as one wails over an only child, and they will grieve bitterly over him as [one] grieves bitterly over a firstborn.
Matthew 23:31
Thus you testify against yourselves that you are descendants of those who murdered the prophets!
Luke 11:48
As a result you are witnesses, and you approve of the deeds of your fathers, because they killed them and you build [their tombs]!

An open

Hebrews 12:2
fixing our eyes on Jesus, the originator and perfecter of faith, who for the joy that was set before him endured the cross, disregarding the shame, and has sat down at the right hand of the throne of God.
Matthew 27:38
Then two robbers were crucified with him, one on [his] right and one on [his] left.
Mark 15:29
And those who passed by reviled him, shaking their heads and saying, "Aha! The one who would destroy the temple and rebuild [it] in three days,
Luke 23:35
And the people stood there watching, but the rulers also ridiculed [him], saying, "He saved others; let him save himself, if this [man] is the Christ of God, the Chosen One!"

General references

Leviticus 14:43
"But if the infection should return and it breaks out in the house after they have removed the stones and after scraping off [the plaster] of the house and after it has been replastered,
Mark 3:28
"Truly I say to you that all the sins and the blasphemies will be forgiven the sons of men, however much they blaspheme.
Luke 12:10
And everyone who speaks a word against the Son of Man, it will be forgiven him, but to the one who blasphemes against the Holy Spirit, it will not be forgiven.
Luke 14:30
saying, 'This man began to build and was not able to finish!'
1 Peter 2:3
if you have tasted that the Lord [is] kind,
Jude 1:22
And have mercy on those who doubt,