God is the being that chooses one form over another
Everything has its own particular shape and form, but that particular shape and form did not have to be that way. If one thing could have existed in two different ways, why does it exist in the way it does? The 'thing' itself could not have decided it. Only an external, powerful and knowledgeable being with a will makes such a decision; that being is God
Allāh leaves His signature all around us in nature. He does this by creating beautiful patterns that are recurring across the different wonders of the world. These beautiful forms cannot be a coincidence or accident
Since everything big and small around us has a beginning, it follows that the universe too has a beginning. Therefore, because the universe has a beginning, it must also have a cause
If cause after cause goes on for infinity, then the effect would not come into existence at all. Since it does exist, it must be caused by something outside of the cycle of causes (an independent cause)
A being that is One, All-Powerful, All-Knowing, Eternal and has a Will. God is also Independent (whilst all creation is dependent on Him) and He is unlike His creation
The human ability to reason is limited - the reasons and arguments a human mind comes up with can only take you to the existence of an all-powerful, all-knowledgeable being
For the saḥābah, the prophethood and miracles of the Prophet, especially the Qur'an, was enough for them to confidently believe without having to explore rational arguments for the existence of God
Revelation was ongoing at the time of the saḥābah, who had the blessed company of the Prophet and witnessed his prophethood and miracles - the greatest of which is the Qur'an
Like Abu Bakr, the şaḥābah and the majority of Muslims throughout history based their belief in the truth of Islam on the character and truthfulness of the Prophet
After the Prophet went on al-Isrā' wa 'l-Mi'rāj, he informed the people of Makkah about it. Whilst they doubted and mocked the Prophet, it was Abu Bakr who was the first to believe him, demonstrating the quality of al-Şiddiq (one who firmly believes and follows the truth)
Field of study that developed as early Muslim thinkers and theologians began writing and defending Islām and Muslim beliefs (in the Qur'an and Sunnah) in an independent and logical manner
Developed some of the teachings of the Ahl al-Sunnah wa 'l-Jama'ah by arranging and explaining the beliefs in the Qur'an and Sunnah so they were simple and easier to understand for all
He intelligently defended the beliefs of the Ahl al-Sunnah wa 'l-Jama'ah against attempts by some groups and sects to alter them
Went through difficult phases in his life, leading him on a decade-long journey to ponder over life's greatest questions, the most important of which was the nature of human knowledge
This eventually led him to prove the existence of God in a logical manner and write about the importance of spirituality
He earned the title Hujjat al-Islām (the Proof of Islam)
Similarly, throughout history, there were other scholars of the Ahl al-Sunnah who worked hard to protect the faith of Muslims for generations to come, while maintaining the teachings of the Qur'an and Sunnah
Their approach was to remain focused on the text of the Qur'an and clear sayings of the Prophet, thus guiding the masses away from delving into philosophical questions
One should not become too pre-occupied with complicated and technical debates regarding Allāh, how He might be or how He does things. Leave such debates and instead, focus your time and energy on worship, good deeds and making du'a' to Allāh to keep you firm in your faith