Satan uses various schemes to deceive people, but Christians can overcome through knowledge of his tactics and faithfulness to God. The document outlines Satan's schemes such as spreading atheism and humanism to blind minds, appealing to lusts of the flesh to distract people from God, persecuting Christians, and using unfaithful people to discourage others. It encourages readers to fight against Satan through obedience to God, recognizing Satan's power but trusting in God's strength, and turning to God in repentance if having given in to Satan's deception.