Translations
…then the Lord certainly knows how to rescue the godly from their trials and to hold the unrighteous under custody, reserved for punishment on the day of judgment —
…then the Master knows how to rescue the reverent from trial, and to keep the unrighteous under punishment until the Day of Judgement —
The Lord knoweth how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished:
if all this is so, then the Lord knows how to rescue the godly from trials and to hold the unrighteous for punishment on the day of judgment.

