The New Testament notes that the pronunciation of Peter gave him away as a Galilean to the servant girl at the brazier the night of Jesus' trial (see Matthew 26:73 and Mark 14:70).

In the 17th and 18th centuries, John Lightfoot and Johann Christian Schöttgen identified and commented on the Galilean Aramaic speech.

Schöttgen's work Horae Ebraicae et Talmudicae, which studied the New Testament in the context of the Talmud, followed that of Lightfoot.

[6] Hoehner (1983) notes that the Talmud has one place (bEr 53b) with several amusing stories about Galilean dialect that indicate only a defective pronunciation of gutturals in the 3rd and 4th centuries.

[8] Michael Sokoloff's English preface to Caspar Levias's 1986 A Grammar of Galilean Aramaic (in Hebrew) also sheds light on the controversy that began with Dalman.