Comentario citado sobre Isaías 63:2

כבס ביין לבושו, the fourth sign identifying the Messiah is that he will be able to launder his garments in blood. He will have to do this as he will find many people who have been slain in the war preceding his coming, and he will assist in their burial. (compare Isaiah 63,2 מדוע אדום ללבושך “why are your garments so red?”) Another allusion to this is found in Psalms 110,6 ידין בגויים מלא גווית, “he works judgment on the nations piling up bodies.”

כבס ביין לבושו, after the grapes have been stamped on with the feet to squeeze out the juice and to store them in the wine-presses, the workers’ clothing has become stained in the process as described by Isaiah 63,2 מדוע אדום ללבושך ובגדיך כדורך בגת?, “Why is your clothing so red, your garments like his who treads grapes? The prophet continues there in verse 3: “I trod them down in My anger trampled them with My rage. Their lifeblood bespattered My garments and all My clothing was stained.” After completing the process described one can drink the wine. This is why Yaakov continued with חכללי עינים מיין ולבן שנים מחלב. Who are the ones whose eyes are darker than wine and whose teeth are whiter than milk- the answer is found in Proverbs 23,29-30 those who linger over wine and those who go in search of mixtures of wine.”

And ruddy. To exact punishment from His enemies, as the matter is stated, “Why is Your clothing red?”⁵¹Yeshayahu 63:2.