Joshua 2:7
So the king's men set out in pursuit of the spies along the road to the fords of the Jordan, and as soon as they had gone out, the gate was shut.

2 Kings 17:4
But the king of Assyria discovered that Hoshea had conspired to send envoys to King So of Egypt, and that he had not paid tribute to the king of Assyria as in previous years. Therefore the king of Assyria arrested Hoshea and put him in prison.

because

Joshua 2:9-14, 24
and said to them, "I know that the LORD has given you this land and that the fear of you has fallen on us, so that all the inhabitants of the land are melting in fear of you. . . .

Psalm 127:1
Unless the LORD builds the house, its builders labor in vain; unless the LORD protects the city, its watchmen stand guard in vain.