Mark 10:39

And they said unto him, We can They knew not at the time what they said, and their words were recorded in heaven. They had yet to learn how serious their words were, and afterwards they were enabled to drink of that Cup, and to be baptized with that Baptism. To St James was given strength to be steadfast unto death, and be the first martyr of the Apostolic band (Acts 12:2); to St John (a) to bear bereavement, first, of his brother, then of the other Apostles; (b) to bear a length of years in loneliness and exile in sea-girt Patmos (Revelation 1:9); and (c) then to die last of the Apostles, as St James first.

the cup Comp. John 18:11, "The cupwhich my Father hath given me, shall I not drink it?" and Mark 14:36, "Take away this cupfrom me." Their thoughts were fastened on thrones and high places; His on a Cup of Suffering and a baptism of blood. For this use of the word "baptism" here, compare Luke 12:50, "I have a baptismto be baptizedwith."