John Gill

Behold, it is written before me,.... This account of their sins; it was in his sight and constant remembrance, and punishment for them was determined by him, written in the book of his decrees: I will not keep silence; but threaten with destruction, and not only threaten, but execute; plead against them really, as well as verbally, with sore judgments: but will recompense, even recompense into their bosom; full and just recompence of punishment for all their transgressions, as it follows. The Targum is, "I will recompense to them the vengeance of their sins, and deliver their bodies to the second death.''