The town was historically a village known as Lebaba, and contains the archaeological remains of a Marcionite church. These include an inscription dated to 318 CE, which is the oldest known surviving inscribed reference, anywhere, to Jesus:
The meeting-house of the Marcionites, in the village of Lebaba, of the Lord and Saviour Jesus the Good -Erected by the forethought of Paul a presbyter, in the year 630 Seleucid era[3] This gained the attention of the First Bible Network (FBN.)[4]
In 1838, Eli Smith noted Deir Ali's population as being Druze.[5]
The Arab Gas Pipeline passes through the area and supplies gas to a modern power station (estimated cost 250 million euros) in the town; the pipeline junction at the power station links the power grids of Egypt, Syria, and Jordan.[6]
^Philippe Le Bas and William Henry Waddington, Greek Inscriptions grecques et latines recueillies en Grèce et en Asie Mineure (1870), volume 3, inscription 2558. Minor reference in Gerhard Kittel, Theological Dictionary of the New Testament, under Synagogue. Also obliquely referenced in the Catholic Encyclopedia article on Marcionites, using Le Bas and Waddington as a reference