SOLUTION: It is clear that both the mother and her sons came to Jesus to make the request, since the text declares “the mother … came to Him with her sons” (v. 20). It is possible that the mother spoke first with the two sons closely following to reiterate the request. This is supported by Matthew’s account because when Jesus responds “are you able to drink the cup that I am about to drink?” the Bible says “they said to Him, `we are able’ ” (v.22). So, there is no unsolvable conflict here. The two accounts are harmonious.