Believers are United
[3:103] You shall hold fast to the rope of GOD, all of you, and do not be divided. Recall GOD’s blessings upon you – you used to be enemies and He reconciled your hearts. By His grace, you became brethren. You were at the brink of a pit of fire, and He saved you therefrom. GOD thus explains His revelations for you, that you may be guided.
[3:104] Let there be a community of you who invite to what is good, advocate righteousness, and forbid evil. These are the winners.
[3:105] Do not be like those who became divided and disputed, despite the clear proofs that were given to them. For these have incurred a terrible retribution.
What makes believers united?
They hold fast to the rope of God, and they all share the same core belief. We are united behind the same idea. Even though we may attempt to get there in different ways the unifying factor is the universal belief in the same idea.
Unity of All Submitters
[2:62] Surely, those who believe, those who are Jewish, the Christians, and the converts; anyone who
(1) believes in GOD, and
(2) believes in the Last Day, and
(3) leads a righteous life,
will receive their recompense from their Lord. They have nothing to fear, nor will they grieve.
There is only one rope, there are not multiple ropes. If we are all holding fast to the rope of God then we should be united. When clear proofs come to a believer from God there should be no dispute.
God reconciles the hearts of the believers as long as we are advocating righteousness and forbidding evil. Division often happens because of personal differences that we morph into religious reasons to justify our division.
All division comes from ego. If we all stick to God and only God we would never be divided.
Just because a group of people share a building or geographic location does not make them united. Unity happens in the heart.
[59:14] They do not get together to fight you unless they are in well-shielded buildings, or behind walls. Their might appears formidable among themselves. You would think that they are united, when in fact their hearts are divided. This is because they are people who do not understand.
A good example of determining when the need to divide should occur is in the history of Moses and Aaron:
[20:92] (Moses) said, “O Aaron, what is it that prevented you, when you saw them go astray,
[20:93] “from following my orders? Have you rebelled against me?”
[20:94] He said, “O son of my mother; do not pull me by my beard and my head. I was afraid that you might say, `You have divided the Children of Israel, and disobeyed my orders.’ “
In this example Aaron was concerned about causing division between the Children of Israel when they decided to worship the golden calf during Moses absence. This shows that we should always be overtly cautious not to cause division, but under extreme situations like such when people abandon God entirely it is no longer a matter of division, but fundamental belief.
Without a strong foundation there is no belief.