Romans 8:32

God did not withhold His own Son [from dying], but offered Him up for all of us. [Since He did that], will He not, along with Jesus, freely give us everything [else] also?

Romans 11:21

For if God did not spare the natural branches [i.e., the Jews], He will not spare you [Gentiles] either.

1 Corinthians 10:22

Or, are we [trying to] make the Lord jealous [by doing this]? [Do we think] we are stronger that He is?

Hebrews 12:29

for our God is truly a consuming fire.

2 Peter 2:4-5

For if God did not spare sinning angels, but cast them in chains, into deep, dark dungeons to await judgment;

Revelation 3:5

The person who has victory [in the Christian life] will be dressed like that, in white clothing, and I will not blot out his name from the book of life. And I will confess his name in front of my Father and 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
God did not withhold His own Son [from dying], but offered Him up for all of us. [Since He did that], will He not, along with Jesus, freely give us everything [else] also?
Romans 11:21
For if God did not spare the natural branches [i.e., the Jews], He will not spare you [Gentiles] either.
2 Peter 2:4
For if God did not spare sinning angels, but cast them in chains, into deep, dark dungeons to await judgment;

His jealousy

1 Corinthians 10:22
Or, are we [trying to] make the Lord jealous [by doing this]? [Do we think] we are stronger that He is?