17 But all these evils as it were culminate in the cowardice and the sloth of those who, after the manner of the sleeping and fleeing disciples, wavering in their faith, miserably forsake Christ when He is oppressed by anguish or surrounded by the satellites of Satan, and in the perfidy of those others who following the example of the traitor Judas, either partake of the holy table rashly and sacrilegiously, or go over to the camp of the enemy. And thus, even against our will, the thought rises in the mind that now those days draw near of which Our Lord prophesied: "And because iniquity hath abounded, the charity of many shall grow cold" ( Matth . xxiv, 12).
Source: Miserentissimus Redemptor (Vatican.va)