We have been called to be ambassadors, to bring forward the truth. In the last days, there are going to be “pretend ambassadors” just like in the days of Joshua, “But when the inhabitants of Gibeon heard what Joshua had done to Jericho and Ai, they worked craftily, and went and pretended to be ambassadors. And they took old sacks on their donkeys, old wineskins torn and mended,” Joshua 9:3-4.
They will deceive you with the information they have gained, and they are going to want you to come into a covenant agreement with them. If you agree with a pretend ambassador, you have come into agreement with the enemy.