Final answer:
Abu Bakr, Muhammad (pbuh)'s confidant, did not warn him about the repercussions of his revelations; rather, it was Meccan society that opposed his monotheism due to the threat it posed to their polytheistic traditions and economic interests.
Step-by-step explanation:
In the early history of Islam, the Prophet Muhammad (pbuh) faced significant opposition in Mecca due to his preaching of monotheism. Muhammad (pbuh)'s uncle, Abu Bakr, was not the one who warned him about the potential repercussions of his revelation. Instead, it was the broader Meccan society, particularly its clan leaders, who resisted Muhammad (pbuh)'s messages because they feared losing their financial benefits and the pilgrims who flocked to the Kaaba to venerate various deities, which was lucrative for business. The exclusive nature of Muhammad (pbuh)'s message, insisting on the worship of Allah alone, posed a threat to the polytheistic practices and established socioeconomic structures of Mecca at the time.