'Watch' in the Bible

And in the fourth watch of the night (3:00-6:00 a.m.) Jesus came to them, walking on the sea.

“So be alert [give strict attention, be cautious and active in faith], for you do not know which day [whether near or far] your Lord is coming.

But understand this: If the head of the house had known what time of the night the thief was coming, he would have been on the alert and would not have allowed his house to be broken into.

Therefore, be on the alert [be prepared and ready], for you do not know the day nor the hour [when the Son of Man will come].

Then He said to them, “My soul is deeply grieved, so that I am almost dying of sorrow. Stay here and stay awake and keep watch with Me.”

And He came to the disciples and found them sleeping, and said to Peter, “So, you men could not stay awake and keep watch with Me for one hour?

Keep actively watching and praying that you may not come into temptation; the spirit is willing, but the body is weak.”

Then sitting down there, they began to keep watch over Him [to guard against any rescue attempt].

Now the centurion, and those who were with him keeping guard over Jesus, when they saw the earthquake and the things that were happening, they were terribly frightened and filled with awe, and said, “Truly this was the Son of God!”

So they went and made the tomb secure, and along with [stationing] a guard of soldiers [to be on watch] they set a seal on the stone.