"Everything around us urges us to mourn. The images of the saints, the very crucifix on our altar, are veiled from our sight. The Church is oppressed with grief. During the first four weeks of Lent, she compassionated her Jesus fasting in the desert; His coming sufferings and crucifixion and death are what now fill her with anguish. We read in to-day’s Gospel, that the Jews threaten to stone the Son of God as a blasphemer: but His hour is not yet come. He is obliged to flee and hide Himself. It is to express this deep humiliation, that the Church veils the cross. A God hiding Himself, that He may evade the anger of men - what a mystery! Is it weakness? Is it, that He fears death? No; we shall soon see Him going out to meet His enemies: but at present He hides Himself from them, because all that had been prophesied regarding Him has not been fulfilled. Besides, His death is not to be by stoning: He is to die upon a cross, the tree of malediction, which, from that time forward, is to be the tree of life. Let us humble ourselves, as we see the Creator of heaven and earth thus obliged to hide Himself from men, who are bent on His destruction! Let us go back, in thought, to the sad day of the first sin, when Adam and Eve bid themselves because a guilty conscience told them they were naked. Jesus has come to assure us of our being pardoned, and lo! He hides Himself, not because He is naked - He that is to the saints the garb of holiness and immortality - but because He made Himself weak, that He might make us strong. Our first parents sought to hide themselves from the sight of God; Jesus hides Himself from the eye of men. But it will not be thus for ever. The day will come when sinners, from whose anger He now flees, will pray to the mountains to fall on them and shield them from His gaze; but their prayer will not be granted, and they shall see the Son of Man coming in the clouds of heaven, with much power and majesty [St. Matt. xxiv. 30]."
-The Liturgical Year - Dom Prosper Gueranger