If you are abstaining from the heinous sins that you are forbidden, We will erase your evil deeds for you, and enter you to a noble entrance.
The seven heinous sins are explained in verse 3: 10. It is told in verses 25: 68-71: "The servants who consider Lord as the Impartial don’t invoke any other deity with Allah, nor kill any soul whom Lord has forbidden except in the Light of Truth, and don’t commit fornication. Whoever does so, has fallen in the heinous sins. The punishment will be doubled for him on the Day of Judgment and he will remain disgraced forever in it, except those who repented and believed and acted honorable deeds; then for such ones, Lord will replace their evil deeds with the best ones since Lord is the Oft-Forgiving, Merciful."
All the heinous deeds and thoughts that happened from anyone before getting Adhikr can be annihilated and can be converted to Best deeds by testifying Adhikr and conveying It to the entire world as explained in verses 7: 8-9 and 18: 103-106. He should also be involved in planting trees and organic farming aiming at the welfare of thousands of communities of Lord’s creatures and should also encourage others to do so as explained in verse 2: 261. The believer is also commanded to do great Jihad with Adhikr against the Arabic Quran reading Fujjar who hide and reject It as explained in verse 9: 73. See explanation 4: 14; 8: 2-4 and 7: 205-206.