The Evangelist couples the names throughout in pairs. So he puts together Peter and Andrew, brothers not so much according to the flesh as in spirit; James and John who left their father after the flesh to follow their true Father; “James the son of Zebedee and John his brother.” He calls him the son of Zebedee, to distinguish him from the other James the son of Alphaeus.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).