They may have been united under Allah - in the Quran

There are several verses in the Quran that emphasize the importance of unity among believers and the idea that all believers are united under Allah. In the Quran, the concept of unity is emphasized repeatedly as a fundamental principle of faith. Muslims are encouraged to work together and support each other in their efforts to worship Allah and live a righteous life. This unity is based on the belief that all Muslims are brothers and sisters, and that they share a common faith and purpose.

Furthermore, the Quran emphasizes the idea that all believers are united under Allah, regardless of their race, ethnicity, or nationality. This unity is a powerful force that can bring Muslims from diverse backgrounds together and help them overcome their differences.

The Quran also warns against division and discord among believers, and emphasizes the importance of working together to achieve common goals. Muslims are encouraged to be patient, compassionate, and forgiving towards one another, and to work towards resolving their differences in a peaceful and respectful manner.

For example, in Quran 3:103, it says: "And hold firmly to the rope of Allah all together and do not become divided. And remember the favor of Allah upon you - when you were enemies and He brought your hearts together and you became, by His favor, brothers. And you were on the edge of a pit of the Fire, and He saved you from it. Thus does Allah make clear to you His verses that you may be guided."

This verse highlights the importance of unity and coming together as believers under Allah, and warns against division and discord. It emphasizes the idea that believers are brothers and sisters to one another, and that they should strive to maintain this bond of unity in order to receive the blessings and guidance of Allah.

The idea of unity in the Quran is a central theme that emphasizes the importance of coming together as a community to worship Allah and support one another in their efforts to lead a righteous life. This unity is a source of strength and guidance for Muslims, and it helps them to overcome the challenges and difficulties that they may face in their lives.

Quran 5:48: "And We have revealed to you, [O Muhammad], the Book in truth, confirming that which preceded it of the Scripture and as a criterion over it. So judge between them by what Allah has revealed and do not follow their inclinations away from what has come to you of the truth. To each of you We prescribed a law and a method. Had Allah willed, He would have made you one nation [united in religion], but [He intended] to test you in what He has given you; so race to [all that is] good. To Allah is your return all together, and He will [then] inform you concerning that over which you used to differ."

Quran 11:118: "And if your Lord had willed, He could have made mankind one community; but they will not cease to differ."

Quran 16:93: "And if Allah had willed, He could have made you [of] one religion, but He causes to stray whom He wills and guides whom He wills. And you will surely be questioned about what you used to do."

Quran 42:8: "If Allah had willed, He would have made them [of] one religion, but He causes to stray whom He wills and guides whom He wills. And you will surely be questioned about what you used to do."

These verses emphasize that Allah could have made all people one united community under one religion, but He chose not to do so. Each person has been given a law and a method to follow, and they must race to do good according to what Allah has revealed. Allah allows people to differ and stray from the truth as a test for them, and they will be questioned about their actions on the Day of Judgment. Ultimately, Allah guides whom He wills and causes to stray whom He wills.