42 He said to the king, “This is what the LORD says: ‘You have set free a man I had determined should die.a Therefore it is your life for his life, your people for his people.’ ”

Read 1 Kings 20:42 Using Other Translations

And he said unto him, Thus saith the LORD, Because thou hast let go out of thy hand a man whom I appointed to utter destruction, therefore thy life shall go for his life, and thy people for his people.
And he said to him, "Thus says the LORD, 'Because you have let go out of your hand the man whom I had devoted to destruction, therefore your life shall be for his life, and your people for his people.'"
The prophet said to him, “This is what the LORD says: Because you have spared the man I said must be destroyed, now you must die in his place, and your people will die instead of his people.”