Then he wrote to them a second letter, saying, "If you are on my side, and if you are ready to obey me, take the heads of your master's sons and come to me at Jezreel tomorrow at this time." Now the king's sons, seventy persons, were with the great men of the city, 1who were bringing them up.
References for 2 Kings 10:6
[See ver. 1 above]