1 Chronicles 12:33 in the World English Bible
Of Zebulun, such as were able to go out in the army, who could set the battle in array with all kinds of instruments of war: fifty thousand who could command and were not of double heart.
Context
32 And of the children of Issachar, which were men that had understanding of the times, to know what Israel ought to do; the heads of them were two hundred; and all their brethren were at their commandment.
33 Of Zebulun, such as went forth to battle, expert in war, with all instruments of war, fifty thousand, which could keep rank: they were not of double heart.
34 And of Naphtali a thousand captains, and with them with shield and spear thirty and seven thousand.