NET
9 —if so, then the Lord knows how to rescue the godly from their trials, and to reserve the unrighteous for punishment at the day of judgment,
Darby
9 [the] Lord knows [how] to deliver the godly out of trial, and to keep [the] unjust to [the] day of judgment [to be] punished;
KJV
9 The Lord knoweth how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished: