King James Version (KJV)
His mischief shall return upon his own head, and his violent dealing shall come down upon his own pate.
Modern English
His mischief returns upon his own head, and on his own skull his violence descends.
Hebrew
יָשׁ֣וּב עֲמָל֣וֹ בְרֹאשׁ֑וֹ וְעַ֥ל קָ֝דְקֳד֗וֹ חֲמָס֗וֹ יֵרֵֽד׃
yashvb ʿamalvo broʾshvo vʿal qadqodvo ḥamasvo yered