Satan – adversary
Devil – accuser, slanderer –He accuses man to God (Job 1:6-11; 2:1-5) –He accuses God to man (Genesis 3)
In the numbering of the people in 2 Samuel 24/1 Chronicles 21 Satan had his way with David. Our adversary can take something that is not sinful in and of itself (the numbering of people), and prey on our carnal man and lead us to sin. He successfully moved David in this instance. "Put on the whole armor of God that you may be able to stand against the wiles of the devil" (Ephesians 6:11; NKJV).
Jason Cicero