For the fourth time (out of five; 1:3-4; 6-7; 19-20; 4:1-4; 6:3-5; 20-21), Paul will again address the crafty schemes of Satan and his agents of deception. In this passage (v. 3-5), he addresses the false prophets of profit who worship the god of greed and describes all the reasons why believers must stay on alert.