Which of the following best describes the effect produced by the repetition of the phrase "there had never been a time when"?

The repetition of the phrase "there had never been a time when" effectively emphasizes the persuasiveness of the Sunday service in John's memory. This phrase suggests a continuous and enduring nature of the experience, indicating that the Sunday service was a pivotal and influential aspect of John's life. Each recurrence reinforces the notion that this experience is not just a standalone event but rather a foundational element that shapes his understanding and appreciation of the past. By using such repetition, the text highlights the significance of those moments, making them central to John's identity and perception, thus indicating their lasting impact on him.

In contrast, while the other choices might touch on themes related to loss, tradition, or nostalgia, they do not capture the specific emphasis on the persuasive power and lasting influence of the Sunday service in John's memory as effectively as the correct answer.