Muslims believe that Jesus cannot be God because he was a human being and cannot mediate for our sins.

According to the Hebrew Scriptures, humans are incapable of ransoming their lives, as stated in Psalm 49:7-9. This highlights the necessity for a divine mediator who can offer the ransom required for redemption. Elihu's assertion in Job 33:19-28 emphasizes the need for a messenger who can declare righteousness and provide atonement. Furthermore, Job expresses his belief in a Redeemer who will ultimately resurrect him, indicating a hope for divine intervention in human salvation. This belief is echoed in the Psalms, where David speaks of beholding God's face and being secure in His presence, reinforcing the idea that a divine mediator is essential for true redemption. The New Testament reveals that Jesus fulfills this role as the perfect sacrifice, shedding his blood for the atonement of sin, as outlined in Leviticus 17:10-11, which states that the life of the flesh is in the blood and is given for atonement. Thus, Jesus' dual nature as God and man is crucial for his ability to mediate and redeem humanity.