4 For if God did not spare angels when they sinned, but sent them to hell,a putting them in chains of darknessb to be held for judgment;

Read 2 Peter 2:4 Using Other Translations

For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;
For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment;
For God did not spare even the angels who sinned. He threw them into hell, in gloomy pits of darkness, where they are being held until the day of judgment.