The Quran tells us the story of two half-brothers, raised in different parts of the world — one whose line carried a long succession of Messengers of God, and the other whose line, after a long interval, brought forth the final Messenger. They each carried, in their own land and to the people they were sent to, the very same mission.
A Shared Father and Foundation
Before either son became the father of a great nation, both were the sons of Abraham, a man the Quran calls a nation unto himself for the purity of his devotion to God. “Indeed, Abraham was a leader, devoutly obedient to God, inclining toward truth, and he was not of those who associate others with God.” (16:120)
That single-minded devotion to the mission of worshipping God alone and the conviction that God alone is worthy of worship, was the legacy Abraham gave both his sons, regardless of which mother raised them or which land they grew up in. Ishmael, raised in the barren valley of Mecca, and Isaac, raised among his father’s household in Palestine, were shaped by the same foundation: a household where idols and false gods were rejected, where God alone was called upon, and where good character was part of worship itself. Neither son inherited a different religion from the other. They inherited the same faith, taught by the same father, and each was responsible for carrying it forward in his own right.
Two Distinct Paths
From that shared beginning, the two brothers’ stories diverge geographically, though never in essence. Ishmael settled with his mother Hajar in the valley that would become Mecca. There, alongside his father, he helped raise the walls of the Ka’ba; the temple structure built for the exclusive worship of the One True God. He became the forefather of the Arabs. Many centuries later, that same line would produce the final Messenger of God, Muhammad. “When Abraham was raising the foundations of the House, and Ishmael, they prayed ‘Our Lord, accept from us. Indeed, You Hear of our call, the Knower of our intentions.’” (2:127)
Isaac, meanwhile, remained in the land father had migrated and settled in, the Holy Land in Palestine/Canaan. Through his son Jacob, Isaac became the forefather of the Israelite line; the twelve tribes, and the long succession of messengers God sent to guide them: Joseph, Moses, David, Solomon, and eventually Jesus.
One Message, not Two
Here is where the Islamic view offers something distinct from a simple family-tree reading of these stories: despite the different lands and different people, both Ishamel and Isaac called and taught the same religion and belief. That one call was to worship the One True God exclusively, and reject whatever is worshipped besides Him, and to believe in all of the Messengers until the final Messenger Muhammad.
“Say, ‘We have believed in God and in what was revealed to us and what was revealed to Abraham, Ishmael, Isaac, Jacob, and the Messengers, and in what was given to Moses and Jesus and to the messengers from their Lord. We make no distinction between any of them, and we are all Muslims submitting to Him.’” (2:136)
This passage is worth sitting with. It does not ask a new Muslim familiar with the Biblical account to discard everything they knew of the earlier messengers; it asks them to recognize those messengers as partners and brothers in a single mission, not founders of separate, competing religions. The Quran declares that Abraham, Ishmael, Isaac, Jacob, Moses, and Jesus and Muhammad were all, in the deepest sense, Muslims: people who submitted to the One True God, calling their communities to do the same. Muhammad is not a break from that chain but its final and clarifying link; restating the same message these earlier messengers brought, in a form preserved intact for every generation after. These great men are “brothers from different mothers, with one faith.”
Why this Matters for a New Muslim
For someone coming to Islam from Judaism or Christianity this framing changes the shape of their journey. Islam does not ask you to treat your prior knowledge of Abraham, Isaac, or Jacob as false starts to be abandoned. It asks you to see them as part of the new journey you are now stepping into; a story that did not begin with Muhammad, in the seventh century, but reaches back through Ishmael and Isaac, through Abraham, and further still to the very first man and prophet, Adam himself.
That reframing matters practically, too. It means you are not joining a new and separate religion cut off from everything that came before. You are recognizing yourself within a long chain of people who submitted to the same God, a chain the Quran tells us has been consistent in its essential message from the very first messenger to the last.
Closing Reflection
Sit for a moment with the image of these two brothers, raised on the same faith, sent to two different peoples, carrying one unchanged mission between them. Ask yourself where you stand in that same chain today, not as an outsider observing two ancient family lines, but as someone now included in the same call that included Ishmael in Mecca and Isaac in Palestine.
please add the link to the ebook on Abraham