From the Matutinum of May 6th, Divino Afflatu 1954 calendar.
Homily by St. Jerome, Priest at Bethlehem.
Whence had the mother of Zebedee's children gotten her idea of the Lord's kingdom He had but just said “The Son of man shall be betrayed unto the chief priests and unto the scribes, and they shall condemn Him to death, and shall deliver Him to the Gentiles to mock, and to scourge, and to crucify Him.” He had told His trembling disciples of the outrages that awaited Him in His Passion and yet that mother came to Him to ask for her sons a share in the glory of His Triumph. I think it was because the Lord, after He had said all the rest, had said also “And the third day He shall rise again.” The woman supposed that after His resurrection His kingdom would immediately be established, and that that would be fulfilled at His first coming which is promised at His second. And so, with womanly haste, she forgetteth the future, and catcheth at the present.
It was the mother who asked, but the Lord addressed His answer to the disciples, understanding that she had made her prayer in obedience to their wishes. “Are ye able to drink of the cup that I shall drink of?” From God's written Word we gather that by this cup, He meant the Passion, touching the which we read that He said “O My Father, if it be possible, let this cup pass from Me!” Likewise is it written in the hundred-and-fifteenth Psalm “I will take the cup of salvation, and call upon the Name of the Lord,” and what that life-giving cup was, the words which soon follow tell us “Precious in the sight of the Lord is the death of His Saints.”
The question ariseth, how the two sons of Zebedee, James namely and John, drank of the cup of contention even unto blood against sin, seeing that though we know by the Scriptures that “Herod the king killed James the brother of John with the sword,” yet John ended his earthly life by a natural death. But if we read the Records of the Church, we shall find there told how that John, on account of his testifying to the truth, was cast into a vessel of boiling oil, and although the holy champion came out unhurt and continued his pilgrimage here for a while longer, before he received his crown from Christ's hand, being straightway banished into the isle of Patmos, yet we see that he had the soul of a martyr, and drank the same cup of martyrdom that was drunk by the three children in the burning fiery furnace, albeit the persecutor did not actually shed his blood.