Jesus turns to the three who had a different desire, and asks it of them. They appear to believe that it was audacious, for they “durst not speak” of it. They didn’t need to. Jesus told them that he understood the thing that they desired, which was the same thing as John the Beloved desired (see John 21:21-23).
In addition to their desire, the lesson of this verse is that it underscores that God knows our hearts even before we can express them to Him. Jesus had taught: “If ye then, being evil, know how to give good gifts unto your children, how much more shall your Father who is in heaven give good things to them that ask him?” (3 Nephi 14:11). God knows what we need, and blesses us accordingly. Sometimes, even when we are unable to articulate our needs.