'Fifties' in the Bible

Furthermore, you shall select out of all the people able men who fear God, men of truth, those who hate dishonest gain; and you shall place these over them as leaders of thousands, of hundreds, of fifties and of tens.

Moses chose able men out of all Israel and made them heads over the people, leaders of thousands, of hundreds, of fifties and of tens.

So I took the heads of your tribes, wise and experienced men, and appointed them heads over you, leaders of thousands and of hundreds, of fifties and of tens, and officers for your tribes.

He will appoint for himself commanders of thousands and of fifties, and some to do his plowing and to reap his harvest and to make his weapons of war and equipment for his chariots.

for when Jezebel destroyed the prophets of the Lord, Obadiah took a hundred prophets and hid them by fifties in a cave, and provided them with bread and water.)

Has it not been told to my master what I did when Jezebel killed the prophets of the Lord, that I hid a hundred prophets of the Lord by fifties in a cave, and provided them with bread and water?

Behold fire came down from heaven and consumed the first two captains of fifty with their fifties; but now let my life be precious in your sight.”