וַיְהִי֙ בְּהַכְרִ֣ית אִיזֶ֔בֶל אֵ֖ת נְבִיאֵ֣י יְהוָ֑ה וַיִּקַּ֨ח עֹבַדְיָ֜הוּ מֵאָ֣ה נְבִאִ֗ים וַֽיַּחְבִּיאֵ֞ם חֲמִשִּׁ֥ים אִישׁ֙ בַּמְּעָרָ֔ה וְכִלְכְּלָ֖ם לֶ֥חֶם וָמָֽיִם׃
for it was so, when Jezebel cut off the prophets of the LORD, that Obadiah took a hundred prophets, and hid them fifty in a cave, and fed them with bread and water.—
Read kabbalistic (mystical) interpretation of I Kings 18:4: and classical mystical sources.