KJV - To him that smote Egypt in their firstborn: for his mercy endureth for ever:

ASV - To him that smote Egypt in their first-born; For his lovingkindness `endureth' for ever;

BBE - To him who put to death the first-fruits of Egypt: for his mercy is unchanging for ever:

WEB - To him who struck down the Egyptian firstborn; For his loving kindness endures forever;

YLT - To Him smiting Egypt in their first-born, For to the age `is' His kindness.

Notes