'Watches' in the Bible

And Bakbukiah and Unno, their brothers, were opposite them in their watches.

So I made them clean from all strange people, and had regular watches fixed for the priests and for the Levites, everyone in his work;

In the night watches I am awake, so that I may give thought to your saying.

Up! give cries in the night, at the starting of the night-watches; let your heart be flowing out like water before the face of the Lord, lifting up your hands to him for the life of your young children who are falling down, feeble for need of food, at the top of every street.