'Watchers' in the Bible

and the watchers see a man coming out from the city, and say to him, 'Shew us, we pray thee, the entrance of the city, and we have done with thee kindness.'

Why did you keep quiet among the sheep, hearing nothing but the watchers piping to the flocks?

And the townsmen of Shechem put secret watchers on the tops of the mountains, and they made attacks on all who went by on the road and took their goods; and word of this came to Abimelech.

So the children of Benjamin saw that they were overcome: and the men of Israel had given way before Benjamin, putting their faith in the watchers who were to make the surprise attack on Gibeah.

And the watchers, rushing on Gibeah and overrunning it, put all the town to the sword without mercy.