Do prophets walk naked? What wisdom lie behind this act?

 20: And Noah began to be an husbandman, and he planted a vineyard:
21: And he drank of the wine, and was drunken; and he was uncovered within his tent.
22: And Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without.
23: And Shem and Japheth took a garment, and laid it upon both their shoulders, and went backward, and covered the nakedness of their father; and their faces were backward, and they saw not their father's nakedness.
24: And Noah awoke from his wine, and knew what his younger son had done unto him.
25: And he said, Cursed be Canaan; a servant of servants shall he be unto his brethren.
26: And he said, Blessed be the LORD God of Shem; and Canaan shall be his servant.
27: God shall enlarge Japheth, and he shall dwell in the tents of Shem; and Canaan shall be his servant.
28: And Noah lived after the flood three hundred and fifty years.( (Genesis chapter 20)

   Noah in the Holy Quran

Noah is praised by God in the Qur'an, which shows his great status amongst the prophets. In sura 17 (Al-Isra), ayah 3, God states:

"Verily he was a devotee most grateful."^[19] 

Also, from the Qur'an which states:

(In the days of old), Noah cried to Us, and We are the best to hear prayer.

And We delivered him and his people from the Great Calamity,

And made his progeny to endure (on this earth);

And We left (this blessing) for him among generations to come in later times:

"Peace and salutation to Noah among the nations!"

—Qur'an sura 37 (As-Saaffat) ayat 75-79"

And also in sura 3 (Al-i-Imran) ayah 33, it states: "Allah did choose Adam and Noah, the family of Abraham, and the family of 'Imran above all people

Also Saul walked naked in the Holy Quran

So Saul went to Naioth at Ramah. But the Spirit of God came even on him, and he walked along prophesying until he came to Naioth.

24: And he stripped off his clothes also, and prophesied before Samuel in like manner, and lay down naked all that day and all that night. Wherefore they say, Is Saul also among the prophets? (Samuel 23:24)