Expositor's Bible Commentary Commentary Mark 14:40

"And again he came, and found them sleeping, for their eyes were very heavy; and they knew not what to answer him." — Mark 14:40 (ASV)

Again, after having left his disciples to pray, Jesus returned to find them sleeping. When confronted by Jesus, they were speechless, probably because they were so embarrassed and ashamed. Even Peter had nothing to say on this occasion (cf. 9:6).