2 Kings 2:7
And fifty men of the sons of the prophets went on and stood afar off across from them. And both of them stood by the Jordan.
1 Kings 18:4
for it happened when Jezebel cut off the prophets of Jehovah, Obadiah took a hundred prophets and hid them by fifty in a cave, and fed them with bread and water.)
1 Kings 18:13
Was it not told my lord what I did when Jezebel killed the prophets of Jehovah, how I hid a hundred men of Jehovah's prophets by fifty in a cave and fed them with bread and water?
2 Kings 2:17
And they urged him until he was ashamed, he said, Send. And they sent fifty men. And they looked for three days, but did not find him.