That is because indeed Allah is the protector of those who believed, while those who disbelieved, they have no any protector.
The protector of believers is the Believer Allah as Adhikr submits, whereas the protector of disbelievers is Satan who obstruct mankind from Adhikr. So the believer who holdfasts Adhikr-the unbreakable Rope mentioned in verse 2: 256-is self-sufficient without depending anyone. Satan has no any ability except what is given by Allah. Satan is given ability to fulfill disbelievers’ wishes as told in verse 19: 83; and to show their evil deeds as attractive as told in verses 6: 42-43. As told in verses 6: 112; and 114: 6 there is Satan both in Jinn (Sprite) and mankind. As explained in verse 4: 159, Satan will appear in the form of man as Antichrist, and the Fujjar will accept him as prophet at first and later even as Lord. By the second coming of Jesus, he will kill Antichrist, and then the other people belonging to Messenger’s community such as Jains, Budhas, Hindus, Jews, Christians, etc. will kill these worst creatures Fujjar. See explanation 8: 48; 31: 22; and 38: 78, 82-83.