Indeed, We are sufficient for you against the mockers.
Through verses 39: 36-37 Lord says: “Is not Allah sufficient for His Servant? And they threaten you with those other than Him. Anyone whom Allah lets goes astray, then he has none to guide, and the one whom Allah guides, then he has none for straying”. It is told in verse 33: 39 that the Messengers who convey Adhikr (Messages of Lord) and fear Him and don’t fear anyone other than Allah, and enough is Allah as a Reckoner.
The Arabic Quran reading Fujjar are hiding and rejecting Adhikr. They are ridiculing the odd-believer who testifies Adhikr as an odd liar as told in verse 54: 25. The believer holdfasts the Lord by holding the Safeguard Adhikr, so he is guided into the Straightpath as explained in verse 5: 48. He will not obey the Fujjar, instead, he will do great Jihad with Adhikr against them as explained in verse 9: 73. See explanation 3: 21-22; 5: 67; 11: 8 and 101.