2 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
10:7And it came to pass when the letter came to them, that they took the king's sons, and slaughtered seventy persons, and put their heads in baskets, and sent them to him to Jizreel.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.