John 4:27
27Just then, his disciples came. They marveled that he was speaking with a woman; yet no one said, “What are you looking for?” or, “Why do you speak with her?”
The disciples marvel, then keep silent. They still have a map of whom rabbis address. Grace is already ahead of their manners.
Disciples can be saved and still startled by Jesus’ company. The restraint from questioning is at least wisdom; the marvel shows how much they have to learn from the well.
Just then: the timing keeps the disclosure (v. 26) between Jesus and the woman. Their marvel is social; their silence is mercy.
The Lord does not wait for His team’s comfort. He talks with whom He will, and they are not yet ready to interrogate it.