During the hajj, millions of pilgrims race seven times in the heart of Mecca between two hills: from Safa to Marwa, from Marwa to Safa. Tradition calls it Hagar's search for water in the desert. Etymology says something else. Safa in Arabic means smooth rock, pure stone. Aramaic Kefa means the same, and is the name of the founder of the Church: Simon bar Jona - Simon Peter, Greek Petros, Latin petra. Early Islamic sources such as Ibn Kathir and Tabari name Peter in Arabic Şem'ūn eṣ-Ṣafā, Simon of the Rock. Marwa aligns with Hebrew Moriya - the mountain where Abraham was to offer Isaac, where Solomon built the Temple, and where today, beneath the Dome of the Rock, the Hacer-ül Muallaka lies. Safa looks upon Christianity's founding stone, Marwa upon Judaism's core rock. The pilgrim swings seven times between two traditions and arrives at neither.
From that insight the book descends into the Ka'ba's own archaeology. The semicircular area on the northwest side, Hicr-i Ismail, is the remnant of a pre-Islamic church apsis - and that apsis, from Mecca's vantage, faced Jerusalem: Islam's first qibla. The 605 CE rebuild used Byzantine materials; on the inner walls were frescoes of Mary holding the infant Jesus, and after Mecca's conquest Muhammad covered that image for a time with his own hands, according to al-Azraqi's chronicle. The stone Maqam Ibrahim carries traces of an ancient altar stone; the name "Door of Repentance" lets the voice of Christian confession sound through. The Ka'ba is no new sanctuary but an old place re-read in the language of tawḥīd.
Then comes the cornerstone. The Black Stone in the Ka'ba's corner is the silent twin of 1 Peter 2:6: "Behold, I lay in Zion a chosen, precious cornerstone." The pattern extends: Mithras is born of rock; Moses strikes the rock and twelve springs pour forth for twelve tribes and twelve apostles; Jesus makes Cephas the foundation of the Church; the Old Testament calls God himself "Rock". The book follows the pattern past the architecture, into the text of the Quran. The letter Nûn's shape matches the early Christian ichthys fish-symbol; crescent and star come from Byzantine coinage; Hū, Raḥmān, Raḥīm opens an ontological line toward the unnameable essence of God. Jonah's story in the Quran resonates with Paul's missionary path. In 631 CE, Laylat al-Qadr and Epiphany, Eid al-Adha and Easter coincide; the Hijri calendar breaks that parallel. Karīm and kerygma come from the same tradition of oral proclamation.
This is not a polemic. Its thesis: Islam is no new religion but the last link of an old tawḥīd line - Abraham's inheritance, Moses's covenant, Jesus's grace in one continuous witness whose traces remain visible in ritual and stone. Readers of Tom Holland's In the Shadow of the Sword, of Fred Donner's Muhammad and the Believers, of Karen Armstrong's comparative eye, will find here a rare Semitic-philological study written from a Turkish-Dutch hand. Whoever follows the rock from which the gods are born stands at Safa on Kefa, at Marwa on Moriya, and at the Ka'ba's corner on Peter's cornerstone. That the sa'y is no "back and forth" but the concentrated blow of an entire field of tradition - once seen, it will not be forgotten.
Hüseyin Doğan is a writer and independent researcher in comparative theology, the history of religion, and Semitic philology. He publishes in Turkish, Dutch, German, and English at the intersections of Judaism, Christianity, and Islam, focused on the origins of scripture and the archaeology of ritual. The early Church Fathers, Aramaic-Syriac-Hebrew sources, and the history of pre-Islamic Arabia are his ground material.
