From the early Church Fathers to now.
1 Patristic · 2 Jewish · 1 Catholic
“They have shut up their fat: their mouth hath spoken proudly.”
“"Mine enemies have compassed about My soul;" "they have shut up their own fat" [Psalm 17:10]. They have been covered with their own gross joy, after that their desire has been satiated with wickedness. "Their mouth has spoken pride." And therefore their mouth spoke pride, in saying, "Hail, King of the Jews," [Matthew 27:29] and other like words.”
“[With] their fat, they closed themselves up With their fat, they closed their heart and their eyes from looking at Your deeds, in fear of You.”
“With their fat they have enclosed their mouth; they speak proudly. – Their great sleekness has enclosed their mouth. By reason of their great luxury they speak proudly.”
“Next he sets forth the manner; hence he says, "Their fatness." Fatness in Scripture is sometimes taken in a good sense, sometimes in a bad sense. In a good sense, insofar as it signifies devotion of mind: Ps. 62: "Let my soul be filled as with marrow and fatness." In a bad sense: first, insofar as it signifies wickedness of heart; second, of mouth; third, of deed. And therefore it designates detestable malice: Job 21: "The bowels of the wicked are full of fat, and his bones are moistened with marrow." And this is manifold. Sometimes it is delight in the sin they commit: Prov. 2: "They rejoice when they have done evil and exult in the worst things." Also pride and falsehood: Job 11: "A vain man is puffed up with pride and thinks himself born free, like the colt of a wild donkey." Also carnal sensibility. He says, therefore, "Their fatness," that is, their carnal sense, or pride, or delight, "they have shut up" within themselves, so as not to grasp the spiritual sense. Jerome has, "With their fat," that is, with the abundance of temporal goods and worldly power, "they have enclosed me." Second, regarding the mouth: "Their mouth has spoken pride." And this is when the Jews spoke against Christ: Mt. 27: "If you are the King of Israel," etc.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.