Matthew 20:22
“But Jesus answered and said, Ye know not what ye ask. Are ye able to drink of the cup that I shall drink of, and to be baptized with the baptism that I am baptized with? They say unto him, We are able.”
Then came to him the mother of Zebedee’s children with her sons, worshipping him, and desiring a certain thing of him.
And he said unto her, What wilt thou? She saith unto him, Grant that these my two sons may sit, the one on thy right hand, and the other on the left, in thy kingdom.
But Jesus answered and said, Ye know not what ye ask. Are ye able to drink of the cup that I shall drink of, and to be baptized with the baptism that I am baptized with? They say unto him, We are able.
And he saith unto them, Ye shall drink indeed of my cup, and be baptized with the baptism that I am baptized with: but to sit on my right hand, and on my left, is not mine to give, but it shall be given to them for whom it is prepared of my Father.
And when the ten heard it, they were moved with indignation against the two brethren.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Saying, Father, if thou be willing, remove this cup from me: nevertheless not my will, but thine, be done.”
“Saying, Father, if thou be willing, remove this cup from me: nevertheless not my will, but thine, be done.”
“Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered.”
“He went away again the second time, and prayed, saying, O my Father, if this cup may not pass away from me, except I drink it, thy will be done.”
“And he went a little further, and fell on his face, and prayed, saying, O my Father, if it be possible, let this cup pass from me: nevertheless not as I will, but as thou wilt.”