It could have been written by a Gentile who just happens to be very well educated in Jewish scripture and has picked up also this Jewish exegetical kind of technique, which is what he USES.

它也可能是个非犹太人写的，那人碰巧受到过良好的犹太教经文教育，并且也学了这种犹太人的注释技巧，并且用了这种技巧。

youdao

Variations of place names for Nazareth (sometimes called Natzrat or Nazara), Capernaum (Kapharnaum) and Tzippori (Sepphoris) appear in biblical texts and in the Talmud, an ancient Jewish rabbinical scripture written in Hebrew and Aramaic.

BBC: Walking with Jesus in the Galilee