The writer describes himself as the disciple whom Jesus loved (13:23; 19:26; 20:2; 21:7, 20, 24).
His knowledge of Jewish life, hostility between Jews and Samaritans, Jewish customs,
geography of Palestine, Cana, and details of an eye witness are indicative of John as the writer.
The early church designated John as the writer, and all other evidence agrees.
I'm going with the early church who were in a position to know the personal disciples of John,
rather than with latter-day novel theories.
His knowledge of Jewish life, hostility between Jews and Samaritans, Jewish customs,
geography of Palestine, Cana, and details of an eye witness are indicative of John as the writer.
The early church designated John as the writer, and all other evidence agrees.
I'm going with the early church who were in a position to know the personal disciples of John,
rather than with latter-day novel theories.