"I [Nuh] said: 'Ask forgiveness of your Lord. Truly He is Endlessly Forgiving .'” (Surah Nuh, 71:10)
Allah's forgiveness is infinite. He gives all of His servants countless opportunities to repent and thereby purify themselves. People can save themselves from the punishment of Hell by repenting for what they did in ignorance. If they turn sincerely to the Qur'an and scrupulously adhere to Allah's commands, they will find our Lord ever forgiving and most merciful, as stated below:
Why should Allah punish you if you are thankful and have faith?... (Surat an-Nisa', 4:147)
In fact, even ungrateful people who are ignorant of religion may enjoy many blessings because of His forgiveness and compassion, for:
If Allah were to take mankind to task for what they have earned, He would not leave a single creature crawling on it; but He defers them until a specified time. Then, when their time comes, Allah sees His servants! (Surah Fatir, 35:45)
Allah grants enough time for anyone who is willing to receive admonition. He sends Messengers who warn and inform them about what is allowed and what is prohibited. Those who insist on denial, despite His revelations, will surely be repaid.
... I am Ever-Forgiving to anyone who repents, has faith, acts rightly, and then is guided. (Surah Ta Ha, 20:82)
But to those who do evil in ignorance and then, after that, repent and put things right, to them your Lord is Ever-Forgiving, Most Merciful. (Surat an-Nahl, 16:119)
O you who believe! Have fear of Allah and faith in His Messenger. He will give you a double portion of His mercy, grant you a Light by which to walk, and forgive you. Allah is Ever-Forgiving, Most Merciful. (Surat al-Hadid, 57:28)
