Why would God include verses in the Quran that are unclear and whose meanings only He knows, when the Quran claims to be clear and a guide for humanity?

Sura 3:7 raises a significant question about the nature of divine revelation in the Quran, particularly regarding the presence of verses that are said to be allegorical and known only to God. This suggests that there is an inherent complexity in the text that may lead to confusion and discord among its followers. However, this complexity can be understood as a means of testing the sincerity and depth of faith among believers. Those who are truly grounded in knowledge will seek to understand the entirety of the message, rather than focusing on ambiguous passages. In contrast, Christians assert that God's ultimate revelation is found in Jesus Christ, who is the Word made flesh and provides clarity and understanding of God's will. The Christian faith emphasizes that through Jesus, believers receive a clear and direct understanding of God's nature and purpose, which transcends the ambiguities found in the Quran. Thus, while the Quran may contain unclear verses, the Christian perspective holds that God has provided a definitive and clear revelation in Christ, who invites all to come to Him for understanding and truth.