וַיִּפְשַׁ֨ט גַּם־ה֜וּא בְּגָדָ֗יו וַיִּתְנַבֵּ֤א גַם־הוּא֙ לִפְנֵ֣י שְׁמוּאֵ֔ל וַיִּפֹּ֣ל עָרֹ֔ם כָּל־הַיּ֥וֹם הַה֖וּא וְכָל־הַלָּ֑יְלָה עַל־כֵּן֙ יֹֽאמְר֔וּ הֲגַ֥ם שָׁא֖וּל בַּנְּבִיאִֽם׃ (פ)
And he also stripped off his clothes, and he also prophesied before Samuel, and lay down naked all that day and all that night. Wherefore they say: ‘Is Saul also among the prophets?’
Read midrashic interpretation of I Samuel 19:24: and classical rabbinic exegesis.