From the blessings and virtues of Allah upon us, is that He has chosen for us this complete and perfect religion of Islam, and He has chosen from amongst His creation sincere slaves. Allah has described these slaves with some tremendous and praiseworthy attributes; contemplate over the statement of Allah in description of His slaves:
And the slaves of the Most Beneficent (Allah) are those who walk on the earth in humility and sedateness. [Surah Al-Furqan: 63]
Your Step By Step Guide to Al Islaam
Since the human intellect is unable to independently determine the worship of God in the manner which pleases and is most beloved to Him, and in addition to the fact that a human is incapable of instilling systematic organization and adequate legislation for the creation whilst taking into consideration the vast differences in people – as this is not possible by anyone besides God – it is therefore evident from the perfect Wisdom and Mercy of God to send Messengers and reveal books to reform His creatures and establish the evidences upon them.