John Chrysostom — as excerpted in the Catena Aurea on John 1:37-40

“(Hom. xviii. 3) It shewed a strong desire to hear Him, since even at sunset they did not turn from Him. To sensual persons the time after meals is unsuitable for any grave employment, their bodies being overloaded with food. But John, whose disciples these were, was not such an one. His evening was a more abstemious one than our mornings.”