ציטירנדיקער פּירוש אויף ישעיהו 32:7

“He applied to himself: and my vessels are evil.” It seems to me, with Heaven’s help, that a wife is called her husband’s vessel, as our sages said that a woman forms a covenant only with one who makes her a vessel, and likewise Rabbi Elazar’s wife sent Rabbi a vessel saying that which was used for sacred purpose may be used for profane. Hezekiah trusted that through the merit of his wife, the daughter of Isaiah, some help and success would come to him, but when he saw that even her merit did not aid him he said “and my vessel,” meaning that he himself, who was a vessel in the mitzvah of procreation since he initially did not marry, now saw that his vessel through his wife also turned out badly. Therefore he said “behold for peace I had great bitterness,” for Manasseh and Rabshakeh have initials forming mar, and peace refers to a wife. He expected that from the peace of marriage with Isaiah’s daughter he would have worthy children, but instead he saw that from that peace came Mar, the initials of Manasseh Rabshakeh.