Romans 8:32

He that spared not his own Son, But freely delivered him up for us all, How shall he not with him also freely give us all things?

Romans 11:21

for if God spared not the natural branches, neither will he spare you.

1 Corinthians 10:22

What! would we provoke the Lord to jealousy? Are we stronger than he?

Hebrews 12:29

FOR INDEED OUR GOD IS A CONSUMING FIRE.

2 Peter 2:4-5

For if God did not spare angels when they sinned, but cast them down to Tartarus, and committed them to chains of darkness, and reserved them for judgment;

Revelation 3:5

He who overcomes shall thus be clad in white raiment; and I will in no wise blot out his name from the book of life, and I will own his name before my Father, and before his angels.

Treasury of Scripture Knowledge

Summary

The LORD will not spare him, but then the anger of the LORD and his jealousy shall smoke against that man, and all the curses that are written in this book shall lie upon him, and the LORD shall blot out his name from under heaven.

His jealousy

Bible References

Will not spare

Romans 8:32
He that spared not his own Son, But freely delivered him up for us all, How shall he not with him also freely give us all things?
Romans 11:21
for if God spared not the natural branches, neither will he spare you.
2 Peter 2:4
For if God did not spare angels when they sinned, but cast them down to Tartarus, and committed them to chains of darkness, and reserved them for judgment;

His jealousy

1 Corinthians 10:22
What! would we provoke the Lord to jealousy? Are we stronger than he?