'Watch' in the Bible

Then he said to them, "Watch out and guard yourself from all types of greed, because one's life does not consist in the abundance of his possessions."

Even if he comes in the second or third watch of the night and finds them alert, blessed are those slaves!

Watch yourselves! If your brother sins, rebuke him. If he repents, forgive him.

He said, "Watch out that you are not misled. For many will come in my name, saying, 'I am he,' and, 'The time is near.' Do not follow them!