The blessings upon Ishmael in Genesis confirm the prophethood of Muhammad since he is the only prophet descended from him.

Muslims often cite Genesis 17:20 to support the claim that the blessings upon Ishmael confirm the prophethood of Muhammad. However, a closer examination of the context reveals that these blessings pertain to Ishmael's descendants becoming a great nation, specifically twelve princes, and do not imply a prophetic role for Muhammad. In Genesis 17:21, God explicitly states that His covenant will be established with Isaac, emphasizing that the true line of blessing and prophecy comes from Isaac's descendants. Furthermore, Genesis 25:12-18 recounts the fulfillment of God's promise to Ishmael, detailing his twelve sons who became princes. This historical account highlights the political and familial legacy of Ishmael rather than any prophetic significance leading to Muhammad. The biblical narrative consistently underscores that the line of kings and prophets, including the ultimate fulfillment in Jesus Christ, comes through Isaac, not Ishmael. In light of these passages, it becomes evident that the interpretation of Ishmael's blessings as a precursor to Muhammad's prophethood is a misrepresentation of the biblical text. The Bible presents a clear and distinct lineage through Isaac, which is foundational to the Christian understanding of God's redemptive plan through Jesus Christ, the promised Messiah.