Concept

Pool of Siloam

Q: What does Siloam mean?

The Hebrew Shiloach (rendered Siloam in Greek and English) comes from the root shalach ("to send"). The Johannine narrative makes this etymology theologically explicit at John 9.7: "the pool of Siloam (which means Sent)." The pool is fed by water "sent" from the Gihon Spring through Hezekiah's Tunnel; the man born blind is "sent" by Jesus to wash there. The wordplay is one of many in John's Gospel that draw symbolic significance from Jerusalem geography.

Intro

In John 9, Jesus heals a man born blind by anointing his eyes with mud and sending him to wash in the Pool of Siloam. The man went, washed, and came back seeing. For almost two thousand years, the Christian tradition assumed the pool in question was the modest Byzantine-period reservoir still visible at the southern end of the City of David, fed by the outflow of Hezekiah's Tunnel. The site was a quiet stop on the pilgrimage route, with a small church above it built in the 5th century.

In June 2004, sewer-line workers in the City of David area accidentally exposed massive stepped stones. Archaeologists Ronny Reich and Eli Shukron, summoned to the site, immediately recognized that the stones were ancient and belonged to a much larger pool than the small Byzantine reservoir. As they excavated, they uncovered a monumental Second Temple period stepped pool, approximately 70 meters long, with carefully cut stone steps descending into the basin from at least three sides. This was the pool John 9 described, the pool from the time of Jesus, dramatically larger and more imposing than the modest later structure tradition had pointed to for centuries.

In full

The Pool of Siloam, in its Second Temple-period form, is a monumental stepped pool at the southern end of the City of David in Jerusalem, fed by the Gihon Spring through Hezekiah's Tunnel. The Second Temple pool was approximately 70 meters long with stepped stone seating around at least three sides, suggesting a ritual-immersion (mikveh-style) function for pilgrims preparing to ascend to the Temple Mount. The pool was definitively identified by the 2004 sewer-line discovery and subsequent controlled excavations led by Ronny Reich and Eli Shukron of the Israel Antiquities Authority. The pool is the location of the healing of the man born blind in John 9.7-11, and the "Sent" etymology of Siloam (Shiloach, from Hebrew shalach, "to send") is the theological pivot of the Johannine narrative.

Discovery

The smaller Byzantine reservoir at the site (the "traditional Pool of Siloam") had been continuously visible since the 5th century, when a church was built above it. The dramatic enlargement of the find came in June 2004 when a sewer-pipe replacement project in the area accidentally exposed massive stone steps. Ronny Reich and Eli Shukron of the Israel Antiquities Authority took charge of the discovery and conducted controlled excavations from 2004 through 2011, exposing approximately one-third of the original pool. Stratigraphic and coin evidence dated the pool definitively to the Second Temple period (1st century BC to AD 70). The full pool extent remains partially unexcavated due to overlying private property.

What it shows

Three significant attestations:

The pool from John 9 is the much larger Second Temple structure, not the modest Byzantine reservoir. The 2004 discovery dramatically changed the visual and theological understanding of the John 9 narrative. The pool Jesus sent the blind man to was a monumental civic-religious installation at the southern terminus of the City of David, fed by the centuries-old Hezekiah's Tunnel water system.
Johannine topographic accuracy. Like the Pool of Bethesda, the Pool of Siloam is a Johannine topographic detail that critical scholarship occasionally treated as vague or inaccurate. The 2004 excavations confirm the precise location, scale, and Second Temple period dating, fitting John's narrative exactly.
The ritual-immersion function. The stepped configuration of the pool, with descending stairs into the basin, suggests a mikveh-style ritual-immersion installation for pilgrims preparing for Temple worship. This contextual detail enriches the Johannine narrative: the man born blind, sent to wash in the "Sent" pool, undergoes a ritual-purification echo that fits the theological structure of the Fourth Gospel.

Biblical references

John 9.1-12, Jesus heals the man born blind.
John 9.7, "And he said to him, 'Go, wash in the pool of Siloam' (which means Sent). So he went and washed and came back seeing."
John 9.11, "The man called Jesus made mud and anointed my eyes and said to me, 'Go to Siloam and wash.' So I went and washed and received my sight."
Nehemiah 3.15, earlier mention of "the pool of Shelah" (Siloam) in the rebuilding of Jerusalem.
Isaiah 8.6, "the gently flowing waters of Shiloah."
Luke 13.4, "those eighteen on whom the tower in Siloam fell", the tower's location at the Siloam pool area.

Evidential status

Well-established mainstream consensus. The 2004 discovery is uncontested. The Second Temple period dating is uncontested. The identification as the Pool of Siloam of John 9 is the natural inference and is universally accepted. The pool is partially open to visitors at the City of David archaeological park (subject to ongoing excavation and property-rights constraints).

Common questions this page answers

Q: Was the Pool of Siloam from John 9 really found?

Yes. In June 2004, sewer-line work in the City of David area of Jerusalem accidentally exposed massive stone steps. Archaeologists Ronny Reich and Eli Shukron of the Israel Antiquities Authority took charge and conducted controlled excavations from 2004 through 2011, exposing the monumental Second Temple period stepped pool that is the Pool of Siloam of John 9.7-11. The pool was previously known only by tradition as a small Byzantine reservoir; the 2004 find revealed the actual much larger structure from Jesus's time.

Q: Where is the Pool of Siloam today?

At the southern end of the City of David archaeological park in Jerusalem, fed by the outflow of Hezekiah's Tunnel from the Gihon Spring. The pool is partially excavated and open to visitors. Full excavation is constrained by overlying private property and ongoing archaeological work.

Q: How big was the Pool of Siloam?

The Second Temple period pool was approximately 70 meters long, with stepped stone seating around at least three sides. This is dramatically larger than the modest Byzantine-period reservoir that had been visible at the site for centuries. The actual pool from John 9 was a monumental civic-religious installation.

Q: Does the Pool of Siloam confirm the Gospel of John?

Yes, in the specific way that it confirms the historicity of the Johannine topographic reference and validates the Johannine author's direct knowledge of Jerusalem geography. Like the Pool of Bethesda (with its five porches), the Pool of Siloam is a Johannine topographic detail that critical scholarship occasionally treated as vague or fictional; the 2004 excavations confirm the precise location, scale, and Second Temple period dating. The cumulative weight of confirmed Johannine topography (Bethesda, Siloam, Gabbatha pavement, Jacob's Well) supports first-century Johannine sourcing rather than 2nd-century literary construction. See Anonymous Gospels Objection Defeater for the broader case.

Q: What does Siloam mean?

The Hebrew Shiloach (rendered Siloam in Greek and English) comes from the root shalach ("to send"). The Johannine narrative makes this etymology theologically explicit at John 9.7: "the pool of Siloam (which means Sent)." The pool is fed by water "sent" from the Gihon Spring through Hezekiah's Tunnel; the man born blind is "sent" by Jesus to wash there. The wordplay is one of many in John's Gospel that draw symbolic significance from Jerusalem geography.