Mark 14:37
Then he returned to his disciples and found them sleeping. Simon, he said to Peter, are you asleep? Couldn't you keep watch for one hour? — the return to sleeping disciples is the Olivet Discourse's watchfulness command immediately violated. Simon (not Peter — the pre-calling name when Jesus is disappointed) highlights the failure. One hour: even one hour of watchfulness was beyond them. The Olivet Discourse warned against sleeping when the master returns; the disciples are already sleeping while the master prays.