'Spies' in the Bible

And they watched him, and sent forth spies, which should feign themselves just men, that they might take hold of his words, that so they might deliver him unto the power and authority of the governor.

I have served Him by frequent travelling, amid dangers in crossing rivers, dangers from robbers; dangers from my own countrymen, dangers from the Gentiles; dangers in the city, dangers in the Desert, dangers by sea, dangers from spies in our midst;

By faith the harlot Rahab perished not with them that believed not, when she had received the spies with peace.

In the same way, was Rahab the prostitute not justified by works too, when she received the [Hebrew] spies as guests and protected them, and sent them away [to escape] by a different route?