"Say, 'O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.'" (Quran 39:53)
"And whoever does a wrong or wrongs himself but then seeks forgiveness of Allah will find Allah Forgiving and Merciful." Quran 4:110:
"Allah, the Exalted and Glorious, said: 'O son of Adam, so long as you call upon Me and ask of Me, I shall forgive you for what you have done, and I shall not mind. O son of Adam, were your sins to reach the clouds of the sky and were you then to ask forgiveness of Me, I would forgive you. O son of Adam, were you to come to Me with sins nearly as great as the earth and were you then to face Me, ascribing no partner to Me, I would bring you forgiveness nearly as great as it.'"
The above quoted verse form Qur'an and the Hadith of Prophet Muhammad ﷺ should be enough and an eye opener for those who label "Allah of Muslims" as unkind, merciless and unloving.
"If you avoid the major sins which you are forbidden, We will remove from you your lesser sins and admit you to a noble entrance [into Paradise]." (Quran 4:31)
"Do you not know that to Allah belongs the dominion of the heavens and the earth? He punishes whom He wills and forgives whom He wills, and Allah is over all things competent." Quran (5:40)
"This is for what your own hands have sent before [to the Judgment], and because Allah is not ever unjust to His servants." (Quran 3:182)
In Islam, shirk (Arabic: شِرْك) is considered one of the gravest sins. The term "shirk" comes from the Arabic root word "sharika," which means to share or associate. In the religious context, shirk specifically refers to accepting other divinities or powers alongside Allah as associates., thereby violating the fundamental concept of Tawhid, which is the oneness and absolute unity of Allah.
- What is the Reality of Shirk - the sin of idolatry or polytheism (Scholars' Viewpoint) [Link]
- The Sin of Shirk - Associating Partners with God
May Allāh (سبحانه و تعالى) help us understand Qur'ān and follow the Sunnah of Prophet Muhammad ﷺ, which is embodiment of commandments of Allah contained in the Qur'ān. May Allah help us to be like the ones He loves and let our lives be lived helping others and not making others' lives miserable or unlivable. May all our wrong doings, whether intentional or unintentional, be forgiven before the angel of death knocks on our door.