Verb grēgoreō (to keep awake) in the Gospels-Acts

(Translation from NRSV with a few modifications for a more literal meaning)

Matthew

24: 42Keep awake (grēgoreō) therefore, for you do not know on what day your Lord is coming.
24: 43But understand this: if the owner of the house had known in what part of the night the thief was coming, he would have kept awake (grēgoreō) and would not have let his house be broken into.
25: 13Keep awake (grēgoreō) therefore, for you know neither the day nor the hour.
26: 38Then he said to them, "I am deeply grieved, even to death; remain here, and keep awake (grēgoreō) with me."
26: 40Then he came to the disciples and found them sleeping; and he said to Peter, "So, could you not keep awake (grēgoreō) with me one hour?
26: 41Keep awake (grēgoreō) and pray that you may not come into the time of trial; the spirit indeed is willing, but the flesh is weak."

Mark

13: 34It is like a man going on a journey, when he leaves home and puts his slaves in charge, each with his work, and commands the doorkeeper to keep awake (grēgoreō).
13: 35Therefore, keep awake (grēgoreō) - for you do not know when the master of the house will come, in the evening, or at midnight, or at cockcrow, or at dawn,
13: 37And what I say to you I say to all: Keep awake (grēgoreō)."
14: 34And he said to them, "I am deeply grieved, even to death; remain here, and keep awake (grēgoreō)."
14: 37He came and found them sleeping; and he said to Peter, "Simon, are you asleep? Could you not keep awake (grēgoreō) one hour?
14: 38Keep awake (grēgoreō) and pray that you may not come into the time of trial; the spirit indeed is willing, but the flesh is weak."

Luke

12: 37Blessed are those slaves whom the master finds keeping awake (grēgoreō) when he comes; truly I tell you, he will fasten his belt and have them sit down to eat, and he will come and serve them.

Acts

20: 31Therefore keep awake (grēgoreō), remembering that for three years I did not cease night or day to warn everyone with tears.