Nehemiah 4:9
Nevertheless we made our prayer to our God, and set a watch against them day and night, because of them.
Torrey's Topical Textbook—AKJV

Isaiah 21:8
And he cried, A lion: My lord, I stand continually on the watchtower in the daytime, and I am set in my ward whole nights:
Torrey's Topical Textbook—AKJV