1 Samuel 11:7-8
11:7 He took a pair of oxen and cut them up. Then he sent the pieces throughout the territory of Israel by the hand of messengers, who said, “Whoever does not go out after Saul and after Samuel should expect this to be done to his oxen!” Then the terror of the Lord fell on the people, and they went out as one army.
11:8 When Saul counted them at Bezek, the Israelites were 300,000 strong and the men of Judah numbered 30,000.