2 Kings 10:6

6 Then he wrote a letter the second time to them, saying, “If you are on my side, and if you will listen to my voice, take the heads of the men who are your master’s sons, and come to me to Jezreel by tomorrow this time.” Now the king’s sons, being seventy persons, were with the great men of the city, who brought them up. 2 Kings 10:6WEB