Romans 8:32

The God who did not spare his own Son but gave him up for us all, surely He will give us everything besides!

Romans 11:21

For if God did not spare the natural branches, he will not spare you either.

1 Corinthians 10:22

What! do we intend to rouse the Lord's jealousy? Are we stronger than he is?

2 Peter 2:4-5

For if God did not spare angels who had sinned, but committing them to pits of the nether gloom in Tartarus, reserved them under punishment for doom:

Revelation 3:5

'The conqueror shall be clad in white raiment; I will never erase his name from the book of Life, but will own him openly 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
The God who did not spare his own Son but gave him up for us all, surely He will give us everything besides!
Romans 11:21
For if God did not spare the natural branches, he will not spare you either.
2 Peter 2:4
For if God did not spare angels who had sinned, but committing them to pits of the nether gloom in Tartarus, reserved them under punishment for doom:

His jealousy

1 Corinthians 10:22
What! do we intend to rouse the Lord's jealousy? Are we stronger than he is?