From this work arose her dissertation on the parables of Jesus - Gleichnisse Jesu, Einführung und Auslegung - with which she was promoted to a doctor of theology summa cum laude in July 1961 at the Church University Berlin-Zehlendorf.
In February 1970, Eta Linnemann worked in Marburg with Rudolf Bultmann and Ernst Fuchs on studies on the Passion story.
Following a conversion experience in 1977, Linnemann caused a stir in 1978 when she renounced the historical-critical method in 1978 and asked readers to destroy her previous publications.
In 2007, she cited Ernst Käsemann and an unnamed ear witness, that Rudolf Bultmann on his death bed had recanted his critical views.
One of Linnemann's views to find support among conservative English speaking scholarship, notably F. David Farnell, was her rejection of a Q (source) for the synoptic Gospels in favour of an explanation following the Jewish requirement of Deuteronomy 19:15 that "on the evidence of two or three witnesses a matter shall be confirmed".