Proverbs 6:34

For jealousy is the rage of a man: therefore he will not spare in the day of vengeance.
— Proverbs 6:34, King James Version

In other translations

World English Bible (WEB)

For jealousy arouses the fury of the husband. He won't spare in the day of vengeance.

American Standard Version (ASV)

For jealousy is the rage of a man; And he will not spare in the day of vengeance.

Young's Literal Translation (YLT)

For jealousy <FI>is<Fi> the fury of a man, And he doth not spare in a day of vengeance.