'Watch' in the Bible

But watch, if it goes up by the way of its own territory to Beth-shemesh, then [you will know that] He has done us this great evil. But if not, then we will know that it was not His hand that struck us; this disaster happened to us by chance.”

The next morning Saul put the men into three companies; and they entered the [Ammonites’] camp during the [darkness of the early] morning watch and killed the Ammonites until the heat of the day; and the survivors were scattered, and no two of them were left together.

Then Saul sent messengers to David’s house to watch for him, so that he might kill him in the morning. But Michal, David’s wife, told him, “If you do not save your life tonight, tomorrow you will be killed.”