John the Apostle
John 4:27BSB·traditional attribution

Just then His disciples returned and were surprised that He was speaking with a woman. But no one asked Him, “What do You want from her?” or “Why are You talking with her?”

John Calvin Reformed @genevareformer

27. His disciples came, and wondered. That the disciples wondered, as the Evangelist relates, might arise from one of two causes; either that they were offended at the mean condition of the woman, or that they reckoned the Jews to be polluted, if they entered into conversation with the Samaritans.

Matthew Henry Presbyterian @wholebiblehenry

We have here the remainder of the story of what happened when Christ was in Samaria, after the long conference he had with the woman. I. The interruption given to this discourse by the disciples' coming. It is probable that much more was said than is recorded; but just when the discourse was brought to a head, when Christ had made himself known to her...

Commenting on John 4:27-42

John Gill Reformed Baptist @doctorgill

And upon this came his disciples,.... Just as he was saying the above words, and making himself known in this full manner, his disciples, who had been into the city to buy food, came up to them: and marvelled that he talked with the woman; or with a woman; for, according to the Jewish canons, it was not judged decent, right, and proper, nor indeed...