Satan promises salvation but delivers only punishment, while Jesus promises salvation and delivers it to all His followers.

"As Christ has a Gospel, Satan has a gospel too; the latter being a clever counterfeit of the former. So closely does the gospel of Satan resemble that which it parades, multitudes of the unsaved are deceived by it" ~A. W. Pink, 1886 – 1952, an English Bible teacher, author, and congregational minister who became one of the most influential evangelical authors in the second half of the twentieth century.