Allah promises the protection of forgiveness and a Great Reward to those who attain belief and do works that fulfill the needs of people and augment the well being of society
Allah has promised those who believe (in the Oneness of Allah - Islamic Monotheism) and do deeds of righteousness, that for them there is forgiveness and a great reward (i.e. Paradise)
Allah has promised those who believe and live as their faiths require, “There is forgiveness and a great reward for them.”
Sayyed Abbas Sadr-Ameli
Allah has promised those who believe and do good deeds that they will have forgiveness and a great reward
Al-muntakhab fi tafsir al-Qur'an al-Karim
Allah has promised forgiveness to those who believed in Him with hearts impressed with the image of religious and spiritual virtues and with deeds imprinted with wisdom and piety. He shall pardon their past iniquities and grace them with a great meritorious reward