Luke 9:32

This information is also unique to the third Gospel. Evidently the three disciples had been sleeping or had almost fallen asleep while Jesus was praying (Luke 9:29; cf. Luke 22:45). Thus they were not ready spiritually for what they experienced. If Jesus found it necessary to pray then, they should have followed His example. Their improper response comes out in the next verse. They apparently did not understand the significance of the discussion about Jesus’ exodus. The vision before them, however, awakened them fully.