A true token - literally, “a sign” or “pledge of truth; “something to bind them to keep their promise faithfully. The “token” was the oath which the spies take Joshua 2:14.
Related Commentaries of Joshua 2:12
Joshua 2:12
12 Now therefore, I pray you, swear unto me by the LORD, since I have shewed you kindness, that ye will also shew kindness unto my father's house, and give me a true token: