Untested Boasting
We do not know, until after the event, if we have fulfilled all we have promised. Our claim, promise or boast is always tested by experience. Peter started off by boasting about his loyalty but ended by weeping about his disloyalty (Mark 14:72). Jesus was briefing His disciples for the separation they would experience. His mission was a solitary role; nobody else could be the substitute sacrifice for the sins of the world.