Shared ground
Mark presents a sharp contrast: the temple looks permanent and impressive, yet Jesus predicts it will be completely dismantled. The disciple’s focus is on visible greatness (“what kind of stones… buildings”), and Jesus does not deny the greatness of the structures; he overturns the assumption that greatness means lasting security.
The scene also highlights how Jesus handles charged topics. He speaks publicly as he leaves the temple, but the deeper discussion is moved to a private setting across from it. Only four disciples are named as asking for clarification, and their questions set the agenda for what follows: timing (“when?”) and identification (“what sign?”).
Where interpretation differs
Some read “these things” as referring only to the temple’s destruction that Jesus has just predicted. Others think the disciples’ wording (“these things… all about to be accomplished”) signals that they are also asking about larger end-time events tied to the temple’s fall.
A smaller difference shows up in how strictly people take “not one stone on another.” Some take it as a literal description of the physical outcome; others take it as forceful language for total ruin, without requiring every stone to be displaced in a visible way.
Why the disagreement exists
The passage itself contains a clear prediction (the temple’s dismantling) but the disciples’ two-part question is open-ended. The phrase “these things” can naturally point back to what Jesus just said, yet it can also function as a doorway into wider concerns that the next part of the chapter addresses. The “not one stone” wording is vivid and absolute, which raises the question of whether it is a precise architectural claim or a way of stressing completeness.
What this passage clearly contributes
Explicitly, it establishes that Jesus foretells the temple’s collapse and that his closest followers want a timetable and a recognizable signal. It also frames the rest of Mark 13 as an answer to that private question. Theologically by inference (not directly argued here), it suggests that God’s purposes are not guaranteed by impressive institutions, and that Jesus speaks with authority about the fate of even the central public symbol of worship in Jerusalem (Mark 13:1–4).