The Unforgivable Sin
[4:48] GOD does not forgive idolatry,* but He forgives lesser offenses for whomever He wills. Anyone who sets up idols beside GOD, has forged a horrendous offense.
*4:48 Idol worship is not forgivable, if maintained until death. One can always repent from any offense, including idolatry, before death comes (see 4:18 & 40:66).
[4:18] Not acceptable is the repentance of those who commit sins until death comes to them, then say, “Now I repent.” Nor is it acceptable from those who die as disbelievers. For these, we have prepared a painful retribution.
Before God’s Blessings Upon Him, Muhammad Used to Worship Idols
[40:66] Say, “I have been enjoined from worshiping the idols you worship beside GOD, when the clear revelations came to me from my Lord. I was commanded to submit to the Lord of the universe.”*
*40:66 The Arabic word “Nahaa” used in this verse indicates the stopping of something that was going on. See for example the same word in 4:171. See also 93:7.
[12:42] He then said to the one to be saved “Remember me at your lord.”* Thus, the devil caused him to forget his Lord, and, consequently, he remained in prison a few more years.
*12:42 When Joseph begged his companion to intercede with the king on his behalf, he exhibited dependence on other than God to be saved from the prison. This does not befit a true believer, and such a serious slip cost Joseph a few years in the prison. We learn from the Quran that only God can relieve any hardship that might befall us. A true believer trusts in God and depends totally on Him alone (1:5, 6:17, 8:17, 10:107).
God’s Infinite Mercy
[39:53] Proclaim: “O My servants who exceeded the limits, never despair of GOD’s mercy. For GOD forgives all sins. He is the Forgiver, Most Merciful.”
Submission (Islam): Abraham’s Religion*
[2:135] They said, “You have to be Jewish or Christian, to be guided.” Say, “We follow the religion of Abraham – monotheism – he never was an idol worshiper.”
[3:67] Abraham was neither Jewish, nor Christian; he was a monotheist submitter. He never was an idol worshiper.
[6:161] Say, “My Lord has guided me in a straight path – the perfect religion of Abraham, monotheism. He never was an idol worshiper.”
Muhammad: A Follower of Abraham*
[16:123] Then we inspired you (Muhammad) to follow the religion of Abraham,* the monotheist; he never was an idol worshiper.
The Majority of People Do Not Believe
[12:103] Most people, no matter what you do, will not believe.